FOM Institute for Atomic and Molecular Physics AMOLF, c/o Philips Research Laboratories, High Tech Campus 4, 5656 AE Eindhoven, The Netherlands, and Instituto de Estructura de la Materia, Consejo Superior de Investigaciones Científicas, Serrano 121, 28006 Madrid, Spain |
| Name:Personal | |
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Name Part:given |
J. |
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Name Part:family |
Gómez Rivas |
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Role |
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Role Term:Text |
author |
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affiliation |
FOM Institute for Atomic and Molecular Physics AMOLF, c/o Philips Research Laboratories, High Tech Campus 4, 5656 AE Eindhoven, The Netherlands, and Instituto de Estructura de la Materia, Consejo Superior de Investigaciones Científicas, Serrano 121, 28006 Madrid, Spain |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
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Issuance |
monographic |
| Abstract | We demonstrate a strong, 5-fold enhancement of the radiative decay rate from highly efficient fluorescent dye molecules around resonant optical nanoantennas. The plasmonic modes of individual gold dimer antennas are tuned by the particle length and the antenna gap, providing control over both the spectral resonance position and the near-field mode profile of the nanoantenna. Resonant enhancement of the radiative and nonradiative decay rates of a fluorescent dye is observed, resulting in an increase of the internal quantum efficiency from 40% up to 53% for single antennas, and up to 59% for antenna clusters. This improvement of the already high quantum efficiency of the dye molecules is in agreement with electrodynamic model calculations that predict a maximum attainable efficiency around 80% due to nonradiative losses in the metal. |
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Title |
Nano Lett. |
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Origin Information |
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Issuance |
continuing |
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Part Detail:volume |
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Part Number |
7 |
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Part Detail:issue |
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Part Number |
9 |
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Extent(unit="pages") |
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Start |
2871 |
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End |
2875 |
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Identifier:ISSN |
1530-6984 |
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Genre(marcgt) |
periodical |
| Identifier | mus07 |
| Identifier:DOI | 10.1021/nl0715847 |
| Location | |
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URL |
http://dx.doi.org/10.1021/nl0715847 |
| Title Information | |
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Title |
Molecular electronic spectral broadening in liquids and glasses |
| Name:Personal | |
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Name Part:given |
Anne B. |
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Name Part:family |
Myers |
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Role |
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Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
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Issuance |
monographic |
| Abstract | The magnitudes, time scales, and underlying mechanisms responsible for broadening the electronic spectra of molecules in liquid solutions and glasses are reviewed. The emphasis is on experimental results from hole-burning, single-molecule, photon echo, and resonance Raman and fluorescence studies. The influence of the time scale of the measurement in distinguishing between homogeneous broadening (electronic dephasing) and inhomogeneous broadening is discussed, and the role of coupling of solvent phonons to the solute's electronic transition is stressed. |
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Title |
Ann. Rev. Phys. Chem. |
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Issuance |
continuing |
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Part |
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Part Detail:volume |
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Part Number |
49 |
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Part Detail:issue |
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Part Number |
1 |
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Extent(unit="pages") |
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Start |
267 |
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End |
295 |
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Genre(marcgt) |
periodical |
| Identifier | mye98 |
| Identifier:DOI | 10.1146/annurev.physchem.49.1.267 |
| Location | |
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URL |
http://arjournals.annualreviews.org/doi/abs/10.1146/annurev.physchem.49.1.267 |
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URL |
http://dx.doi.org/10.1146/annurev.physchem.49.1.267 |
| Title Information | |
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Title |
Electrically controlled light scattering with single metal nanoparticles |
| Name:Personal | |
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Name Part:given |
J. |
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Name Part:family |
Müller |
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Role |
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Role Term:Text |
author |
| Name:Personal | |
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Name Part:given |
C. |
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Name Part:family |
Sönnichsen |
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Role |
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Role Term:Text |
author |
| Name:Personal | |
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Name Part:given |
H. |
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Name Part:family |
von Poschinger |
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Role |
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Role Term:Text |
author |
| Name:Personal | |
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Name Part:given |
G. |
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Name Part:family |
von Plessen |
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Role |
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Role Term:Text |
author |
| Name:Personal | |
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Name Part:given |
T. A. |
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Name Part:family |
Klar |
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Role |
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Role Term:Text |
author |
| Name:Personal | |
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Name Part:given |
J. |
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Name Part:family |
Feldmann |
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Role |
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Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | A concept to electrically control the scattering of light is introduced. The idea is to embed noble metal nanoparticles in an electro-optical material such as a liquid crystal in order to induce a spectral shift of the particle plasmon resonance by applying an electric field. Light scattering experiments on single gold nanoparticles show that spherically shaped nanoparticles become optically spheroidal when covered by an anisotropic liquid crystal. The two particle plasmon resonances of the optically spheroidal gold nanoparticles can be spectrally shifted by up to 50 meV when electric fields of more than 10 kV/cm are applied. |
| Subject | |
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Topic |
optical switches |
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Topic |
light scattering |
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Topic |
gold |
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Topic |
nanostructured materials |
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Topic |
plasmons |
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Topic |
liquid crystals |
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Title Information |
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Title |
Appl. Phys. Lett. |
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Origin Information |
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Issuance |
continuing |
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Part |
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Part Detail:volume |
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Part Number |
81 |
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Part Detail:issue |
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Part Number |
1 |
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Extent(unit="pages") |
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Start |
171 |
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End |
173 |
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Genre(marcgt) |
periodical |
| Identifier | mue02 |
| Identifier:DOI | 10.1063/1.1491003 |
| Location | |
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URL |
http://link.aip.org/link/?apl/81/171 |
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URL |
http://dx.doi.org/10.1063/1.1491003 |
| Title Information | |
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Title |
Enhancing and Quenching Functions of Silver Nanoparticles on the Luminescent Properties of Europium Complex in the Solution Phase |
| Name:Personal | |
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Name Part:given |
Hideki |
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Name Part:family |
Nabika |
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Role |
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Role Term:Text |
author |
| Name:Personal | |
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Name Part:given |
Shigehito |
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Name Part:family |
Deki |
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Role |
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Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
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Issuance |
monographic |
| Abstract | Luminescent properties of the Eu(dinic) complex, where dinic is dinicotinic acid, were examined in the presence of silver nanoparticles in N,N-dimethylformamide. The formation of particle aggregates was observed upon mixing the particle solution with the complex solution, in which the complexes behaved like linker molecules. Luminescent intensity of the complexes was enhanced in the presence of silver nanoparticles, but at only a limited particle concentration region. The observed particle concentration dependences of the luminescent intensity were regarded as the result of a delicate balance between an enhancing and a quenching effect of the silver nanoparticles. In addition to the change in intensity, silver nanoparticles also affected the asymmetric ratio (or monochromaticity) of the europium luminescence. These changes in the luminescent properties of the complex were discussed in terms of the effects of particle aggregates and consequent modifications of the local electromagnetic field, refractive index, and the ligand field around europium ion. |
| Subject | |
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Topic |
resonance energy-transfer |
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Topic |
spontaneous emission |
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Topic |
raman-scattering |
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Topic |
surface |
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Topic |
fluorescence |
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Topic |
molecules |
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Topic |
dna |
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Topic |
terbium(iii) |
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Topic |
nanorods |
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Topic |
ligands |
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Title Information |
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Title |
J. Phys. Chem. B |
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Origin Information |
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Issuance |
continuing |
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Part |
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Part Detail:volume |
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Part Number |
107 |
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Part Detail:issue |
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Part Number |
35 |
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Extent(unit="pages") |
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Start |
9161 |
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End |
9164 |
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Genre(marcgt) |
periodical |
| Identifier | nab03 |
| Identifier:DOI | 10.1021/jp035741b |
| Location | |
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URL |
http://dx.doi.org/10.1021/jp035741b |
| Title Information | |
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Title |
Experimental verification of Rayleigh scattering cross sections |
| Name:Personal | |
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Name Part:given |
Hans |
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Name Part:family |
Naus |
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Role |
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Role Term:Text |
author |
| Name:Personal | |
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Name Part:given |
Wim |
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Name Part:family |
Ubachs |
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Role |
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Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | The cavity-ringdown technique is applied to measure Rayleigh extinctions of Ar, N2, and SF6 in the 560-650-nm region at 294 K. It is shown that experimental and calculated Rayleigh scattering cross sections agree within an experimental uncertainty of 1% (for SF6, 3%). |
| Subject | |
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Topic |
Scattering |
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Topic |
molecules |
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Topic |
Scattering |
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Topic |
Rayleigh |
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Title Information |
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Title |
Opt. Lett. |
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Origin Information |
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Issuance |
continuing |
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Part |
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Part Detail:volume |
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Part Number |
25 |
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Part Detail:issue |
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Part Number |
5 |
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Extent(unit="pages") |
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Start |
347 |
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End |
349 |
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Genre(marcgt) |
periodical |
| Identifier | nau00 |
| Location | |
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URL |
http://ol.osa.org/abstract.cfm?URI=ol-25-5-347 |
| Title Information | |
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Title |
Effect of primary and secondary structure of oligodeoxyribonucleotides on the fluorescent properties of conjugated dyes |
| Name:Personal | |
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Name Part:given |
Irina |
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Name Part:family |
Nazarenko |
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Role |
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Role Term:Text |
author |
| Name:Personal | |
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Name Part:given |
Rick |
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Name Part:family |
Pires |
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Role |
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Role Term:Text |
author |
| Name:Personal | |
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Name Part:given |
Brian |
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Name Part:family |
Lowe |
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Role |
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Role Term:Text |
author |
| Name:Personal | |
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Name Part:given |
Mohamad |
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Name Part:family |
Obaidy |
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Role |
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Role Term:Text |
author |
| Name:Personal | |
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Name Part:given |
Ayoub |
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Name Part:family |
Rashtchian |
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Role |
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Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
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Issuance |
monographic |
| Abstract | We studied fluorescence intensity, polarization and lifetime of some commonly used fluorophores conjugated to oligodeoxyribonucleotides with different primary and secondary structures. We found that fluorescence intensity can increase or decrease upon hybridization of the labeled strand to its complement depending on the sequence and position of the fluorophore. Up to 10-fold quenching of the fluorescence upon hybridization was observed when the dye moiety was attached close to the 3' end and the 3'-terminal base was either dG or dC. No quenching upon hybridization was observed when the dye was positioned within the same sequence context but close to the 5' end. The presence of a dG overhang quenches the fluorescence less efficiently than a blunt end dG-dC or dC-dG base pair. When located internally in the double strand, the dG-dC base pair does not affect the fluorescence of the nearby dye. Guanosine in a single-stranded oligonucleotide quenches the fluorescence of nearby dye by <2-fold. Upon duplex formation, this quenching is eliminated and the fluorescence increases. This increase can only be detected when the fluorophore is located at least 6 nt from the terminal dG-dC base pair. The change of fluorescence polarization upon duplex formation inversely correlates with the change of intensity. Fluorescein conjugated to a single-stranded oligonucleotide or a duplex undergoes a bi-exponential decay with 4 and 1 ns lifetimes. |
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Title Information |
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Title |
Nucl. Acids Res. |
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Origin Information |
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Issuance |
continuing |
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Part |
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Part Detail:volume |
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Part Number |
30 |
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Part Detail:issue |
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Part Number |
9 |
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Extent(unit="pages") |
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Start |
2089 |
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End |
2195 |
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Genre(marcgt) |
periodical |
| Identifier | naz02 |
| Location | |
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URL |
http://nar.oupjournals.org/cgi/content/abstract/30/9/2089 |
| Title Information | |
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Title |
Glutathione-Protected Gold Clusters Revisited: Bridging the Gap between Gold(I)-Thiolate Complexes and Thiolate-Protected Gold Nanocrystals |
| Name:Personal | |
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Name Part:given |
Yuichi |
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Name Part:family |
Negishi |
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Role |
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Role Term:Text |
author |
| Name:Personal | |
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Name Part:given |
Katsuyuki |
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Name Part:family |
Nobusada |
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Role |
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Role Term:Text |
author |
| Name:Personal | |
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Name Part:given |
Tatsuya |
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Name Part:family |
Tsukuda |
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Role |
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Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
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Issuance |
monographic |
| Abstract | Small gold clusters ( 1 nm) protected by molecules of a tripeptide, glutathione (GSH), were prepared by reductive decomposition of Au(I)-SG polymers at a low temperature and separated into a number of fractions by polyacrylamide gel electrophoresis (PAGE). Chemical compositions of the fractionated clusters determined previously by electrospray ionization (ESI) mass spectrometry (Negishi, Y. et al. J. Am. Chem. Soc. 2004, 126, 6518) were reassessed by taking advantage of freshly prepared samples, higher mass resolution, and more accurate mass calibration; the nine smallest components are reassigned to Au10(SG)10, Au15(SG)13, Au18(SG)14, Au22(SG)16, Au22(SG)17, Au25(SG)18, Au29(SG)20, Au33(SG)22, and Au39(SG)24. These assignments were further confirmed by measuring the mass spectra of the isolated Au:S(h-G) clusters, where h-GSH is a homoglutathione. It is proposed that a series of the isolated Au:SG clusters corresponds to kinetically trapped intermediates of the growing Au cores. The relative abundance of the isolated clusters was correlated well with the thermodynamic stabilities against unimolecular decomposition. The electronic structures of the isolated Au:SG clusters were probed by X-ray photoelectron spectroscopy (XPS) and optical spectroscopy. The Au(4f) XPS spectra illustrate substantial electron donation from the gold cores to the GS ligands in the Au:SG clusters. The optical absorption and photoluminescence spectra indicate that the electronic structures of the Au:SG clusters are well quantized; embryos of the sp band of the bulk gold evolve remarkably depending on the number of the gold atoms and GS ligands. The comparison of these spectral data with those of sodium Au(I) thiomalate and 1.8 nm Au:SG nanocrystals (NCs) reveals that the subnanometer-sized Au clusters thiolated constitute a distinct class of binary system which lies between the Au(I)-thiolate complexes and thiolate-protected Au NCs. |
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Title Information |
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Title |
J. Am. Chem. Soc. |
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Origin Information |
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Issuance |
continuing |
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Part |
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Part Detail:volume |
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Part Number |
127 |
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Part Detail:issue |
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Part Number |
14 |
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Extent(unit="pages") |
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Start |
5261 |
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End |
5270 |
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Genre(marcgt) |
periodical |
| Identifier | neg05 |
| Identifier:DOI | 10.1021/ja042218h |
| Location | |
|
URL |
http://dx.doi.org/10.1021/ja042218h |
| Title Information | |
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Title |
Visible photoluminescence from nearly monodispersed Au12 clusters protected by meso-2,3-dimercaptosuccinic acid |
| Name:Personal | |
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Name Part:given |
Yuichi |
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Name Part:family |
Negishi |
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Role |
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Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Tatsuya |
|
Name Part:family |
Tsukuda |
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Role |
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Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | Nearly monodispersed Au12 clusters protected by monolayers of meso-2,3-dimercaptosuccinic acid (DMSA) exhibited luminescence at 630 nm with a quantum yield of 1 × 10?6 upon the photoexcitation at 395 nm to the lowest electronic excited state. The visible PL is assigned to phosphorescence originating from a triplet-like excited state based on the large Stokes shift (1.2 eV). The PL quantum yield was enhanced up to ?0.9%, greater by eight orders of magnitude than that of bulk gold, by thickening the protecting layer and freezing a solvent at 77 K. The emission peak energy is discussed within the context of core-size dependent electronic structures by comparison with those of thiolate-protected gold clusters reported in the literature. |
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Title Information |
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Title |
Chem. Phys. Lett. |
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Origin Information |
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Issuance |
continuing |
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Part |
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Part Detail:volume |
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Part Number |
383 |
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Part Detail:issue |
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Part Number |
1-2 |
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Extent(unit="pages") |
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Start |
161 |
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End |
165 |
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Genre(marcgt) |
periodical |
| Identifier | neg04 |
| Identifier:DOI | 10.1016/j.cplett.2003.10.136 |
| Location | |
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URL |
http://dx.doi.org/10.1016/j.cplett.2003.10.136 |
| Title Information | |
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Title |
Strong optical force induced by morphology-dependent resonances |
| Name:Personal | |
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Name Part:given |
Jack |
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Name Part:family |
Ng |
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Role |
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Role Term:Text |
author |
| Name:Personal | |
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Name Part:given |
C. T. |
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Name Part:family |
Chan |
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Role |
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Role Term:Text |
author |
| Name:Personal | |
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Name Part:given |
Ping |
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Name Part:family |
Sheng |
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Role |
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Role Term:Text |
author |
| Name:Personal | |
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Name Part:given |
Zhifang |
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Name Part:family |
Lin |
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Role |
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Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | We consider the resonant optical force acting on a pair of transparent microspheres by the excitation of morphology-dependent resonance (MDR). The bonding and antibonding modes of the MDR correspond to strong attraction and repulsion, respectively. The dependence of the force on separation and the role of absorption are discussed. At resonance, the force can be enhanced by orders of magnitude such that it will dominate other relevant forces. We found that a stable binding configuration can be induced by the resonant optical force. |
| Subject | |
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Topic |
Lasers and laser optics : Trapping |
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Topic |
Optical design and fabrication : Optomechanics |
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Topic |
Optical devices : Microstructure devices |
| Related Item:Host | |
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Title Information |
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Title |
Opt. Lett. |
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Origin Information |
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Issuance |
continuing |
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Part |
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Part Detail:volume |
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Part Number |
30 |
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Part Detail:issue |
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Part Number |
15 |
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Extent(unit="pages") |
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Start |
1956 |
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End |
1958 |
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Genre(marcgt) |
periodical |
| Identifier | ngj05 |
| Location | |
|
URL |
http://www.opticsinfobase.org/abstract.cfm?URI=ol-30-15-1956 |
| Title Information | |
|
Title |
Probing Single Molecules and Single Nanoparticles by Surface-Enhanced Raman Scattering |
| Name:Personal | |
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Name Part:given |
Shuming |
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Name Part:family |
Nie |
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Role |
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Role Term:Text |
author |
| Name:Personal | |
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Name Part:given |
Steven R. |
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Name Part:family |
Emory |
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Role |
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Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | Optical detection and spectroscopy of single molecules and single nanoparticles have been achieved at room temperature with the use of surface-enhanced Raman scattering. Individual silver colloidal nanoparticles were screened from a large heterogeneous population for special size-dependent properties and were then used to amplify the spectroscopic signatures of adsorbed molecules. For single rhodamine 6G molecules adsorbed on the selected nanoparticles, the intrinsic Raman enhancement factors were on the order of 1014 to 1015, much larger than the ensemble-averaged values derived from conventional measurements. This enormous enhancement leads to vibrational Raman signals that are more intense and more stable than single-molecule fluorescence. |
| Related Item:Host | |
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Title Information |
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Title |
Science |
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Origin Information |
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Issuance |
continuing |
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Part |
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Part Detail:volume |
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Part Number |
275 |
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Part Detail:issue |
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Part Number |
5303 |
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Extent(unit="pages") |
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Start |
1102 |
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End |
1106 |
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Genre(marcgt) |
periodical |
| Identifier | nie97 |
| Identifier:DOI | 10.1126/science.275.5303.1102 |
| Location | |
|
URL |
http://www.sciencemag.org/cgi/content/abstract/275/5303/1102 |
|
URL |
http://dx.doi.org/10.1126/science.275.5303.1102 |
| Title Information | |
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Title |
Oligofunctional DNA-Gold Nanoparticle Conjugates |
| Name:Personal | |
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Name Part:given |
Christof M. |
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Name Part:family |
Niemeyer |
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Role |
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Role Term:Text |
author |
| Name:Personal | |
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Name Part:given |
Bülent |
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Name Part:family |
Ceyhan |
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Role |
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Role Term:Text |
author |
| Name:Personal | |
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Name Part:given |
Pompi |
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Name Part:family |
Hazarika |
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Role |
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Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
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Issuance |
monographic |
| Subject | |
|
Topic |
analytical methods |
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Topic |
DNA |
|
Topic |
nanostructures |
|
Topic |
nucleic acids |
|
Topic |
supramolecular chemistry |
| Related Item:Host | |
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Title Information |
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Title |
Angew. Chem. Int. Ed. Engl. |
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Origin Information |
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Issuance |
continuing |
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Part |
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Part Detail:volume |
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Part Number |
42 |
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Part Detail:issue |
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Part Number |
46 |
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Extent(unit="pages") |
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Start |
5766 |
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End |
5770 |
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Genre(marcgt) |
periodical |
| Identifier | nie03 |
| Identifier:DOI | 10.1002/anie.200352744 |
| Location | |
|
URL |
http://dx.doi.org/10.1002/anie.200352744 |
| Title Information | |
|
Title |
{DNA}-{B}ased {A}ssembly of {M}etal {N}anoparticles |
| Name:Personal | |
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Name Part:given |
Christof M. |
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Name Part:family |
Niemeyer |
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Role |
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Role Term:Text |
author |
| Name:Personal | |
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Name Part:given |
Ulrich |
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Name Part:family |
Simon |
|
Role |
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Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | In this microreview we describe the principles of DNA-based assembly of metal nanoparticles in one, two and three dimensions. Different methods of liquid-phase synthesis of metal nanoparticles as well as their functionalisation with DNA are introduced. The concepts developed up to now for the assembly are explained, with selected examples to illustrate the properties of these assemblies as well as emerging applications. |
| Subject | |
|
Topic |
DNA |
|
Topic |
Materials science |
|
Topic |
Nanoparticles |
|
Topic |
Self-Assembly |
|
Topic |
Supramolecular Chemistry |
| Related Item:Host | |
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Title Information |
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|
Title |
Eur. J. Inorg. Chem. |
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Origin Information |
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Issuance |
continuing |
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Part |
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Part Detail:volume |
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Part Number |
2005 |
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Part Detail:issue |
|
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Part Number |
18 |
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Extent(unit="pages") |
|
|
Start |
3641 |
|
End |
3655 |
|
Genre(marcgt) |
periodical |
| Identifier | nie05 |
| Identifier:DOI | 10.1002/ejic.200500425 |
| Location | |
|
URL |
http://dx.doi.org/10.1002/ejic.200500425 |
| Title Information | |
|
Title |
Electronic Structure and Photochemical Properties of a Monolayer-Protected Gold Cluster |
| Name:Personal | |
|
Name Part:given |
Katsuyuki |
|
Name Part:family |
Nobusada |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | The electronic structure of a monolayer-protected gold cluster, [Au13(SCH3)8]3+, has been investigated by performing density functional calculations. The cluster has a characteristic structure with Oh molecular symmetry, and eight (111) facets of a centered cuboctahedral Au13 core cluster are fully passivated by eight methanethiolates. The bond distance between two neighboring gold atoms (3.673 {\AA}) is much larger than that of the bare Au13 cluster (2.929 {\AA}), whereas the Au-S bond distance is 2.403 {\AA}. This atomic rearrangement means that the methanethiolates stabilize the enlarged bare Au13 cluster by bonding to the (111) hollow sites of the bare cluster. The absorption spectrum of the [Au13(SCH3)8]3+ cluster is simulated within time-dependent density functional theory. The spectrum shows clear absorption peaks and each peak is assigned to specific excitation processes. |
| Related Item:Host | |
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Title Information |
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Title |
J. Phys. Chem. B |
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Origin Information |
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Issuance |
continuing |
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Part |
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Part Detail:volume |
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Part Number |
108 |
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Part Detail:issue |
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Part Number |
32 |
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Extent(unit="pages") |
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Start |
11904 |
|
End |
11908 |
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Genre(marcgt) |
periodical |
| Identifier | nob04 |
| Identifier:DOI | 10.1021/jp049879l |
| Location | |
|
URL |
http://dx.doi.org/10.1021/jp049879l |
| Title Information | |
|
Title |
Spectroscopic studies of liquid solutions of R6G laser dye and Ag nanoparticle aggregates |
| Name:Personal | |
|
Name Part:given |
M A |
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Name Part:family |
Noginov |
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Role |
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Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
M |
|
Name Part:family |
Vondrova |
|
Role |
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Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
S M |
|
Name Part:family |
Williams |
|
Role |
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Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
M |
|
Name Part:family |
Bahoura |
|
Role |
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Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
V I |
|
Name Part:family |
Gavrilenko |
|
Role |
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Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
S M |
|
Name Part:family |
Black |
|
Role |
|
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Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
V P |
|
Name Part:family |
Drachev |
|
Role |
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Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
V M |
|
Name Part:family |
Shalaev |
|
Role |
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Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
A |
|
Name Part:family |
Sykes |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | We have found that {R}6{G} laser dye in a concentration of 0.1 g l$^{\−1}$ mixed with a solution of aggregated silver nanoparticles exhibits a new emission band with a maximum at 612 nm. {T}his band does not exist in pure dye of comparable concentration or in a mixture of dye with a solution of single silver nanoparticles. {A} qualitatively similar red-shifted emission band is observed in pure {R}6{G} dye at very high concentration (3.8 or 16.7 g l$^{\−1}$). {I}n both cases, no changes occur to the shapes of the absorption spectra of the dye. {W}e explain the observed spectral changes in terms of {J}-aggregates of {R}6{G} molecules whose formation is probable in the presence of {A}g aggregates with a complicated surface structure and is much less likely in the case of adsorption of dye molecules on single {A}g nanoparticles. {A}lternatively, many features observed in the experiment can be explained by an enhancement of the rates of spontaneous radiative transitions in the proximity of metallic particles, which is due to a modification of the local density of electromagnetic modes in the vicinity of metal surfaces at energies resonant with surface plasmon resonances. |
| Subject | |
|
Topic |
laser dyes |
|
Topic |
aggregates of dye molecules |
|
Topic |
aggregates of silver nanoparticles |
|
Topic |
emission enhancement |
| Related Item:Host | |
|
Title Information |
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|
Title |
J. Opt. A-Pure Appl. Opt. |
|
Origin Information |
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Issuance |
continuing |
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Part |
|
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Part Detail:volume |
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Part Number |
7 |
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Part Detail:issue |
|
|
Part Number |
2 |
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Extent(unit="pages") |
|
|
Start |
S219 |
|
End |
S229 |
|
Genre(marcgt) |
periodical |
| Identifier | nog05 |
| Identifier:DOI | 10.1088/1464-4258/7/2/029 |
| Location | |
|
URL |
http://stacks.iop.org/1464-4258/7/S219 |
|
URL |
http://dx.doi.org/10.1088/1464-4258/7/2/029 |
| Title Information | |
|
Title |
Electrical properties of short DNA oligomers characterized by conducting atomic force microscopy |
| Name:Personal | |
|
Name Part:given |
Claude |
|
Name Part:family |
Nogues |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Sidney R. |
|
Name Part:family |
Cohen |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Shirley S. |
|
Name Part:family |
Daube |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Ron |
|
Name Part:family |
Naaman |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | Complementary, single-strands of DNA (ssDNA), one bound to a gold electrode and the other to a gold nanoparticle were hybridized on the surface to form a self-assembled, dsDNA bridge between the two gold contacts. The adsorption of a ssDNA monolayer at each gold interface eliminates non-specific interactions of the dsDNA with the surface, allowing bridge formation only upon hybridization. The technique used, in addition to providing a good electrical contact, offers topographical contrast between the gold nanoparticles and the non-hybridized surface and enables accurate location of the bridge for the electrical measurements. Reproducible AFM conductivity measurements have been performed and significant qualitative differences were detected between conductivity in single- and double-strand DNA. The ssDNA was found to be insulating over a 4 eV range between ±2 V under the studied conditions, while the dsDNA, bound to the gold nanoparticle, behaves like a wide band gap semiconductor and passes significant current outside of a 3 eV gap. |
| Related Item:Host | |
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Title Information |
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Title |
Phys. Chem. Chem. Phys. |
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Origin Information |
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Issuance |
continuing |
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Part |
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Part Detail:volume |
|
|
Part Number |
6 |
|
Extent(unit="pages") |
|
|
Start |
4459 |
|
End |
4466 |
|
Genre(marcgt) |
periodical |
| Identifier | nog04 |
| Identifier:DOI | 10.1039/b410862k |
| Location | |
|
URL |
http://dx.doi.org/10.1039/b410862k |
| Title Information | |
|
Title |
Ground and Excited State Reactions of New Red Fluorescent Dyes and the DNA base guanosine |
| Name:Personal | |
|
Name Part:given |
S. |
|
Name Part:family |
Nord |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
M. |
|
Name Part:family |
Sauer |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
J. |
|
Name Part:family |
Arden-Jacob |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
K. H. |
|
Name Part:family |
Drexhage |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
U. |
|
Name Part:family |
Lieberwirth |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
S. |
|
Name Part:family |
Seeger |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
J. |
|
Name Part:family |
Wolfrum |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | The increased sensitivity and the advantage of new lopw-cost optical sources and detectros in the red region creates a great demand for new efficient fluorescence labels in this wavelength region. Here some problems arise due to the fact that with increasing absorption wavelength the fluorescence quantum yield drastically decreases, especially in aqueous media. Additionally, organic dyes may aggregate and show non-specific agginities to biological materials. We investigate the interactions of recently developed fluorescent dyes and two commercially available fluorescent dyes with the DNA base guanosine. The results obtained in intermolecular quenching experiments reveal various fluorescence quenching effects. Due to the increasing hydrophobicity of fluorescent dyes with increasing molecular size the aggregation tendency with biological materials also increases. Therefore ground and excited state interactions increase thus promoting the observed fluorescence quenching. |
| Subject | |
|
Topic |
Fluorescence |
|
Topic |
time-resolved spectroscopy |
|
Topic |
rhodamine dyes |
|
Topic |
DNA-bases |
|
Topic |
photochemistry |
| Related Item:Host | |
|
Title Information |
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|
Title |
J. Fluorescence |
|
Origin Information |
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Issuance |
continuing |
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Part |
|
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Part Detail:volume |
|
|
Part Number |
7 |
|
Part Detail:issue |
|
|
Part Number |
1 |
|
Extent(unit="pages") |
|
|
Start |
79(S) |
|
End |
81(S) |
|
Genre(marcgt) |
periodical |
| Identifier | nor97 |
| Title Information | |
|
Title |
Plasmon Hybridization in Nanoparticle Dimers |
| Name:Personal | |
|
Name Part:given |
P. |
|
Name Part:family |
Nordlander |
|
Role |
|
|
Role Term:Text |
author |
|
affiliation |
Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30303 |
| Name:Personal | |
|
Name Part:given |
C. |
|
Name Part:family |
Oubre |
|
Role |
|
|
Role Term:Text |
author |
|
affiliation |
Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30303 |
| Name:Personal | |
|
Name Part:given |
E. |
|
Name Part:family |
Prodan |
|
Role |
|
|
Role Term:Text |
author |
|
affiliation |
Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30303 |
| Name:Personal | |
|
Name Part:given |
K. |
|
Name Part:family |
Li |
|
Role |
|
|
Role Term:Text |
author |
|
affiliation |
Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30303 |
| Name:Personal | |
|
Name Part:given |
M. I. |
|
Name Part:family |
Stockman |
|
Role |
|
|
Role Term:Text |
author |
|
affiliation |
Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30303 |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | Abstract: We apply the recently developed plasmon hybridization method to nanoparticle dimers, providing a simple and intuitive description of how the energy and excitation cross sections of dimer plasmons depend on nanoparticle separation. We show that the dimer plasmons can be viewed as bonding and antibonding combinations, i.e., hybridization of the individual nanoparticle plasmons. The calculated plasmon energies are compared with results from FDTD simulations. |
| Related Item:Host | |
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Title Information |
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|
Title |
Nano Lett. |
|
Origin Information |
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Issuance |
continuing |
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Part |
|
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Part Detail:volume |
|
|
Part Number |
4 |
|
Part Detail:issue |
|
|
Part Number |
5 |
|
Extent(unit="pages") |
|
|
Start |
899 |
|
End |
903 |
|
Identifier:ISSN |
1530-6984 |
|
Genre(marcgt) |
periodical |
| Identifier | nor04 |
| Identifier:DOI | 10.1021/nl049681c |
| Location | |
|
URL |
http://dx.doi.org/10.1021/nl049681c |
| Title Information | |
|
Title |
{Unfolding Pathways of Individual Bacteriorhodopsins} |
| Name:Personal | |
|
Name Part:given |
F. |
|
Name Part:family |
Oesterhelt |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
D. |
|
Name Part:family |
Oesterhelt |
|
Role |
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Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
M. |
|
Name Part:family |
Pfeiffer |
|
Role |
|
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Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
A. |
|
Name Part:family |
Engel |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
H. E. |
|
Name Part:family |
Gaub |
|
Role |
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|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
D. J. |
|
Name Part:family |
Müller |
|
Role |
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|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | Atomic force microscopy and single-molecule force spectroscopy were combined to image and manipulate purple membrane patches from Halobacterium salinarum. Individual bacteriorhodopsin molecules were first localized and then extracted from the membrane; the remaining vacancies were imaged again. Anchoring forces between 100 and 200 piconewtons for the different helices were found. Upon extraction, the helices were found to unfold. The force spectra revealed the individuality of the unfolding pathways. Helices G and F as well as helices E and D always unfolded pairwise, whereas helices B and C occasionally unfolded one after the other. Experiments with cleaved loops revealed the origin of the individuality: stabilization of helix B by neighboring helices. |
| Related Item:Host | |
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Title Information |
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Title |
Science |
|
Origin Information |
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Issuance |
continuing |
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Part |
|
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Part Detail:volume |
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Part Number |
288 |
|
Part Detail:issue |
|
|
Part Number |
5463 |
|
Extent(unit="pages") |
|
|
Start |
143 |
|
End |
146 |
|
Genre(marcgt) |
periodical |
| Identifier | oes00 |
| Identifier:DOI | 10.1126/science.288.5463.143 |
| Location | |
|
URL |
http://www.sciencemag.org/cgi/content/abstract/288/5463/143 |
|
URL |
http://dx.doi.org/10.1126/science.288.5463.143 |
| Title Information | |
|
Title |
Inhibition Assay of Biomolecules based on Fluorescence Resonance Energy Transfer (FRET) between Quantum Dots and Gold Nanoparticles |
| Name:Personal | |
|
Name Part:given |
Eunkeu |
|
Name Part:family |
Oh |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Mi-Young |
|
Name Part:family |
Hong |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Dohoon |
|
Name Part:family |
Lee |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Sung-Hun |
|
Name Part:family |
Nam |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Hyun C. |
|
Name Part:family |
Yoon |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Hak-Sung |
|
Name Part:family |
Kim |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | An inhibition assay method was developed based on the modulation in the FRET efficiency between quantum dots (QDs) and gold nanoparticles (AuNPs) in the presence of the molecules which inhibit the interactions between QD- and AuNP-conjugated biomolecules. For the functionalization, AuNPs were first stabilized by chemisorption of n-alkanethiols and then capped with the first generation polyamidoamine (G1 PAMAM) dendrimers. By employing a streptavidin-biotin couple as a model system, avidin was quantitatively analyzed as an inhibitor by sensing the change in photoluminescence (PL) quenching of SA-QDs by biotin-AuNPs. The detection limit for avidin was about 10 nM. It is anticipated that the PL quenching-based sensing system can be used for the quantitative analysis and high throughput screening of molecules which inhibit the specific biomolecular interactions. |
| Subject | |
|
Topic |
colorimetric detection |
|
Topic |
surface-modification |
|
Topic |
colloidal gold |
|
Topic |
nanocomposites |
|
Topic |
nanocrystals |
|
Topic |
recognition |
|
Topic |
monolayers |
|
Topic |
particles |
|
Topic |
donors |
| Related Item:Host | |
|
Title Information |
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|
Title |
J. Am. Chem. Soc. |
|
Origin Information |
|
|
Issuance |
continuing |
|
Part |
|
|
Part Detail:volume |
|
|
Part Number |
127 |
|
Part Detail:issue |
|
|
Part Number |
10 |
|
Extent(unit="pages") |
|
|
Start |
3270 |
|
End |
3271 |
|
Genre(marcgt) |
periodical |
| Identifier | ohe05 |
| Identifier:DOI | 10.1021/ja0433323 |
| Location | |
|
URL |
http://dx.doi.org/10.1021/ja0433323 |
| Title Information | |
|
Title |
Two Particle Enhanced Nano Raman Microscopy and Spectroscopy |
| Name:Personal | |
|
Name Part:given |
P. |
|
Name Part:family |
Olk |
|
Role |
|
|
Role Term:Text |
author |
|
affiliation |
Institut für Angewandte Photophysik, TU Dresden, 01062 Dresden, Germany |
| Name:Personal | |
|
Name Part:given |
J. |
|
Name Part:family |
Renger |
|
Role |
|
|
Role Term:Text |
author |
|
affiliation |
Institut für Angewandte Photophysik, TU Dresden, 01062 Dresden, Germany |
| Name:Personal | |
|
Name Part:given |
T. |
|
Name Part:family |
Hartling |
|
Role |
|
|
Role Term:Text |
author |
|
affiliation |
Institut für Angewandte Photophysik, TU Dresden, 01062 Dresden, Germany |
| Name:Personal | |
|
Name Part:given |
M. T. |
|
Name Part:family |
Wenzel |
|
Role |
|
|
Role Term:Text |
author |
|
affiliation |
Institut für Angewandte Photophysik, TU Dresden, 01062 Dresden, Germany |
| Name:Personal | |
|
Name Part:given |
L. M. |
|
Name Part:family |
Eng |
|
Role |
|
|
Role Term:Text |
author |
|
affiliation |
Institut für Angewandte Photophysik, TU Dresden, 01062 Dresden, Germany |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | The distance- and polarization-dependent near-field enhancement of two coupling metal nanoparticles (MNPs) is analyzed by means of the novel scanning particle enhanced Raman spectroscopy (SPRM) technique. In contrast to single MNP Raman experiments, the near-field coupling between two dissimilar MNPs as followed here leads to a Raman hot spot yielding an extra enhancement factor of 17.6 and 20, as proven here both in experiment and in theory. Three-dimensional electric field calculations for our two-particle arrangements were performed using the semianalytical multiple-multipole method. An excellent agreement is found to our experiments, in which we inspect the interaction between a "scanning" 30 nm gold MNP (Au30) and a "fixed" 80 nm Au MNP (Au80). The Au80 MNP is attached to the apex of an optical fiber manipulator and exposed to the Gaussian focus of a high NA = 1.45 objective at = 532 nm. A monolayer of 1-octanethiol molecules covering the Au80 MNP serves as the electric field prober when scanning the Au30 MNP through the optical focus. This constellation allows recording the Raman signatures from a very low number of well-confined molecules. Moreover, also the spectral and spatial dependence could be explored with a superb sensitivity and very low integration time. |
| Related Item:Host | |
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Title Information |
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|
Title |
Nano Letters |
|
Origin Information |
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Issuance |
continuing |
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Part |
|
|
Part Detail:volume |
|
|
Part Number |
7 |
|
Part Detail:issue |
|
|
Part Number |
6 |
|
Extent(unit="pages") |
|
|
Start |
1736 |
|
End |
1740 |
|
Identifier:ISSN |
1530-6984 |
|
Genre(marcgt) |
periodical |
| Identifier | olk07 |
| Identifier:DOI | 10.1021/nl070727m |
| Location | |
|
URL |
http://dx.doi.org/10.1021/nl070727m |
| Title Information | |
|
Title |
Characterization of Silane-Modified Immobilized Gold Colloids as a Substrate for Surface-Enhanced Raman Spectroscopy |
| Name:Personal | |
|
Name Part:given |
Lydia G. |
|
Name Part:family |
Olson |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Yu-Shui |
|
Name Part:family |
Lo |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Thomas P. Beebe |
|
Name Part:family |
Jr. |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Joel M. |
|
Name Part:family |
Harris |
|
Role |
|
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Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | Immobilized gold colloid particles coated with a C-18 alkylsilane layer have been characterized as a substrate for surface-enhanced Raman scattering (SERS) studies of adsorption onto hydrophobic surfaces. Atomic force microscopy images, optical extinction spectra, and SERS measurements are reported as a function of accumulation of gold colloid on glass. As the metal particles become increasingly aggregated on the surface, the SERS enhancement increases until the plasmon resonance shifts to wavelengths longer than the excitation laser. The gold colloid substrates are stable and exhibit reproducible SERS enhancement. When octadecyltrimethoxysilane is self-assembled over the gold, the metal surface is protected from exposure to solution-phase species, as evidenced by the inhibition of chemisorption of a disulfide reagent to the overcoated gold surface. The results show that interactions with gold can be blocked by a silane layer so as not to significantly influence physisorption of molecules at the C-18/solution interface. The SERS enhancement from these C-18-overcoated gold substrates is reproducible for different films prepared from the same colloidal suspension; the substrates are also stable with time and upon exposure to laser irradiation. |
| Related Item:Host | |
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Title Information |
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Title |
Anal. Chem. |
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Origin Information |
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Issuance |
continuing |
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Part |
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Part Detail:volume |
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Part Number |
73 |
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Part Detail:issue |
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Part Number |
17 |
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Extent(unit="pages") |
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Start |
4268 |
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End |
4276 |
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Genre(marcgt) |
periodical |
| Identifier | ols01 |
| Identifier:DOI | 10.1021/ac000873b |
| Location | |
|
URL |
http://dx.doi.org/10.1021/ac000873b |
| Title Information | |
|
Title |
Surface-enhanced Raman scattering |
| Name:Personal | |
|
Name Part:given |
A. |
|
Name Part:family |
Otto |
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Role |
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Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
I. |
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Name Part:family |
Mrozek |
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Role |
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Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
H. |
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Name Part:family |
Grabhorn |
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Role |
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Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
W. |
|
Name Part:family |
Akemann |
|
Role |
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Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | On the basis of different types of experiments, the authors develop implicitly the model of surface-enhanced Raman scattering (SERS) of adsorbates on metal surfaces. The long-range enhancement by resonances of the macroscopic laser and Stokes field is separated quantitatively from the metal electron-mediated resonance Raman effect. The latter mechanism proceeds by increased electron-photon coupling at an atomically rough surface and by temporary charge transfer to orbitals of the adsorbates. This model can account for the chemical specificity and vibrational selectivity of SERS and (partly) for the SERS specificity of the various metals. |
| Related Item:Host | |
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Title Information |
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Title |
J. Phys.: Condens. Matter |
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Origin Information |
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Issuance |
continuing |
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Part |
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Part Detail:volume |
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Part Number |
4 |
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Part Detail:issue |
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Part Number |
5 |
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Extent(unit="pages") |
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Start |
1143 |
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End |
1212 |
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Genre(marcgt) |
periodical |
| Identifier | ott92 |
| Identifier:DOI | 10.1088/0953-8984/4/5/001 |
| Location | |
|
URL |
http://stacks.iop.org/0953-8984/4/1143 |
|
URL |
http://dx.doi.org/10.1088/0953-8984/4/5/001 |
| Title Information | |
|
Title |
Finite-difference Time-domain Studies of the Optical Properties of Nanoshell Dimers |
| Name:Personal | |
|
Name Part:given |
C. |
|
Name Part:family |
Oubre |
|
Role |
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Role Term:Text |
author |
|
affiliation |
Department of Physics and Department of Electrical and Computer Engineering, Rice Quantum Institute, M. S. 61, Rice University, Houston, Texas 77251-1892 |
| Name:Personal | |
|
Name Part:given |
P. |
|
Name Part:family |
Nordlander |
|
Role |
|
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Role Term:Text |
author |
|
affiliation |
Department of Physics and Department of Electrical and Computer Engineering, Rice Quantum Institute, M. S. 61, Rice University, Houston, Texas 77251-1892 |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | Abstract: The optical properties of metallic nanoshell dimers are investigated using the finite difference time domain (FDTD) method. We discuss issues of numerical convergence specific for the dimer system. We present results for both homodimers and heterodimers. The results show that retardation effects must be taken into account for an accurate description of realistic size nanoparticle dimers. The optical properties of the nanoshell dimer are found to be strongly polarization dependent. Maximal coupling between the nanoshells in a dimer occurs when the electric field of the incident pulse is aligned parallel to the dimer axis. The wavelengths of the peaks in the extinction cross section of the dimer are shown to vary by more than 100 nm, depending on the incident electric field polarization. The calculations show that electric field enhancements in the dimer junctions depend strongly on dimer separation. The maximum field enhancements occur in the dimer junction and at the expense of a reduced electric field enhancement in other regions of space. We investigate the usefulness of nanoshell dimers substrates for SERS by integrating the fourth power of the electric field enhancements around the surfaces of the nanoparticles as a function of dimer separation and wavelength. The SERS efficiency is shown to depend strongly on dimer separation but much weaker than the fourth power of the maximum electric field enhancement at a particular point. The SERS efficiency is also found to depend strongly on the wavelength of the incident light. Maximum SERS efficiency occurs for resonant excitation of the dimer plasmons. |
| Related Item:Host | |
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Title Information |
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Title |
J. Phys. Chem. B |
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Origin Information |
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Issuance |
continuing |
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Part |
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Part Detail:volume |
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Part Number |
109 |
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Part Detail:issue |
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Part Number |
20 |
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Extent(unit="pages") |
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Start |
10042 |
|
End |
10051 |
|
Identifier:ISSN |
1520-6106 |
|
Genre(marcgt) |
periodical |
| Identifier | oub05 |
| Identifier:DOI | 10.1021/jp044382x |
| Location | |
|
URL |
http://dx.doi.org/10.1021/jp044382x |
| Title Information | |
|
Title |
Optical Properties of Metallodielectric Nanostructures Calculated Using the Finite Difference Time Domain Method |
| Name:Personal | |
|
Name Part:given |
Chris |
|
Name Part:family |
Oubre |
|
Role |
|
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Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Peter |
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Name Part:family |
Nordlander |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | The optical properties of metallodielectric nanostructures, variations of a core-shell geometry, are investigated using the finite difference time domain method. This method provides a convenient, systematic, and general approach for calculating the optical response of a nanostructure of arbitrary symmetry and geometry to an incident light wave. Properties such as the optical absorption and scattering cross sections as well as the local electromagnetic fields and induced charge densities at the surfaces of the nanostructures can be obtained by this method. Issues of convergence with grid size and other simulation parameters are discussed in detail. The method is applied to uniform single nanoshells, nanoshells with surface defects, and nanoshells with shape distortions from a spherical geometry. The results show that, while defects can significantly affect local surface field enhancements, far field properties such as optical absorption and scattering spectra can be remarkably insensitive to defects and distortions. |
| Related Item:Host | |
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Title Information |
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Title |
J. Phys. Chem. B |
|
Origin Information |
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Issuance |
continuing |
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Part |
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Part Detail:volume |
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Part Number |
108 |
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Part Detail:issue |
|
|
Part Number |
46 |
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Extent(unit="pages") |
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|
Start |
17740 |
|
End |
17747 |
|
Genre(marcgt) |
periodical |
| Identifier | oub04 |
| Identifier:DOI | 10.1021/jp0473164 |
| Location | |
|
URL |
http://dx.doi.org/10.1021/jp0473164 |
| Title Information | |
|
Title |
Alexa Dyes, a Series of New Fluorescent Dyes that Yield Exceptionally Bright, Photostable Conjugates |
| Name:Personal | |
|
Name Part:given |
Nataliya |
|
Name Part:family |
Panchuk-Voloshina |
|
Role |
|
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Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Rosaria P. |
|
Name Part:family |
Haugland |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Janell |
|
Name Part:family |
Bishop-Stewart |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Mahesh K. |
|
Name Part:family |
Bhalgat |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Paul J. |
|
Name Part:family |
Millard |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Fei |
|
Name Part:family |
Mao |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Wai-Yee |
|
Name Part:family |
Leung |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Richard P. |
|
Name Part:family |
Haugland |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | Alexa 350, Alexa 430, Alexa 488, Alexa 532, Alexa 546, Alexa 568, and Alexa 594 dyes are a new series of fluorescent dyes with emission/excitation spectra similar to those of AMCA, Lucifer Yellow, fluorescein, rhodamine 6G, tetramethylrhodamine or Cy3, lissamine rhodamine B, and Texas Red, respectively (the numbers in the Alexa names indicate the approximate excitation wavelength maximum in nm). All Alexa dyes and their conjugates are more fluorescent and more photostable than their commonly used spectral analogues listed above. In addition, Alexa dyes are insensitive to pH in the 4-10 range. We evaluated Alexa dyes compared with conventional dyes in applications using various conjugates, including those of goat anti-mouse IgG (GAM), streptavidin, wheat germ agglutinin (WGA), and concanavalin A (ConA). Conjugates of Alexa 546 are at least twofold more fluo-rescent than Cy3 conjugates. Proteins labeled with the Alexa 568 or Alexa 594 dyes are several-fold brighter than the same proteins labeled with lissamine rhodamine B or Texas Red dyes, respectively. Alexa dye derivatives of phalloidin stain F-actin with high specificity. Hydrazide forms of the Alexa dyes are very bright, formaldehyde-fixable polar tracers. Conjugates of the Alexa 430 (ex 430 nm/em 520 nm) and Alexa 532 (ex 530 nm/em 548 nm) fluorochromes are spectrally unique fluorescent probes, with relatively high quantum yields in their excitation and emission wavelength ranges. |
| Subject | |
|
Topic |
dyes |
|
Topic |
fluorescent conjugates |
|
Topic |
photostability |
|
Topic |
immunofluorescence |
|
Topic |
flow cytometry |
|
Topic |
microscopy |
| Related Item:Host | |
|
Title Information |
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|
Title |
J. Histochem. Cytochem. |
|
Origin Information |
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Issuance |
continuing |
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Part |
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Part Detail:volume |
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|
Part Number |
47 |
|
Part Detail:issue |
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|
Part Number |
9 |
|
Extent(unit="pages") |
|
|
Start |
1179 |
|
End |
1188 |
|
Genre(marcgt) |
periodical |
| Identifier | pan99 |
| Location | |
|
URL |
http://www.jhc.org/cgi/content/abstract/47/9/1179 |
| Title Information | |
|
Title |
Biological applications of colloidal nanocrystals |
| Name:Personal | |
|
Name Part:given |
Wolfgang J. |
|
Name Part:family |
Parak |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Daniele |
|
Name Part:family |
Gerion |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Teresa |
|
Name Part:family |
Pellegrino |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Daniela |
|
Name Part:family |
Zanchet |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Christine |
|
Name Part:family |
Micheel |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Shara C. |
|
Name Part:family |
Williams |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Rosanne |
|
Name Part:family |
Boudreau |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Mar A. |
|
Name Part:family |
Le Gros |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Carolyn A. |
|
Name Part:family |
Larabell |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
A. Paul |
|
Name Part:family |
Alivisatos |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | Due to their interesting properties, research on colloidal nanocrystals has moved in the last few years from fundamental research to first applications in materials science and life sciences. In this review some recent biological applications of colloidal nanocrystals are discussed, without going into biological or chemical details. First, the properties of colloidal nanocrystals and how they can be synthesized are described. Second, the conjugation of nanocrystals with biological molecules is discussed. And third, three different biological applications are introduced: (i) the arrangement of nanocrystal-oligonucleotide conjugates using molecular scaffolds such as single-stranded DNA, (ii) the use of nanocrystal-protein conjugates as fluorescent probes for cellular imaging, and (iii) a motility assay based on the uptake of nanocrystals by living cells. |
| Subject | |
|
Topic |
semiconductor quantum dots |
|
Topic |
self-assembled monolayers |
|
Topic |
cadmium-sulfide nanoparticles |
|
Topic |
stabilized gold nanoparticles |
|
Topic |
atomic force microscopy |
|
Topic |
cell-surface receptors |
|
Topic |
cdse nanocrystals |
|
Topic |
molecular recognition |
|
Topic |
phagokinetic tracks |
|
Topic |
optical-properties |
| Related Item:Host | |
|
Title Information |
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|
Title |
Nanotechnology |
|
Origin Information |
|
|
Issuance |
continuing |
|
Part |
|
|
Part Detail:volume |
|
|
Part Number |
14 |
|
Part Detail:issue |
|
|
Part Number |
7 |
|
Extent(unit="pages") |
|
|
Start |
R15 |
|
End |
R27 |
|
Genre(marcgt) |
periodical |
| Identifier | par03a |
| Identifier:DOI | 10.1088/0957-4484/14/7/201 |
| Location | |
|
URL |
http://stacks.iop.org/0957-4484/14/R15 |
|
URL |
http://dx.doi.org/10.1088/0957-4484/14/7/201 |
| Title Information | |
|
Title |
Conjugation of DNA to Silanized Colloidal Semiconductor Nanocrystalline Quantum Dots |
| Name:Personal | |
|
Name Part:given |
Wolfgang J. |
|
Name Part:family |
Parak |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Daniele |
|
Name Part:family |
Gerion |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Daniela |
|
Name Part:family |
Zanchet |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Anke S. |
|
Name Part:family |
Woerz |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Teresa |
|
Name Part:family |
Pellegrino |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Christine |
|
Name Part:family |
Micheel |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Shara C. |
|
Name Part:family |
Williams |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Markus |
|
Name Part:family |
Seitz |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Richard E. |
|
Name Part:family |
Bruehl |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Zev |
|
Name Part:family |
Bryant |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Carlos |
|
Name Part:family |
Bustamante |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Carolyn R. |
|
Name Part:family |
Bertozzi |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
A. Paul |
|
Name Part:family |
Alivisatos |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | Water-soluble, highly fluorescent, silanized semiconductor nanocrystals with different surface charges were synthesized. To covalently attach the nanocrystals to biological macromolecules with a variety of mild coupling chemistries, the outermost siloxane shells were derivatized with thiol, amino, or carboxyl functional groups. Single- or double-stranded DNA was coupled to the nanocrystal surfaces by using commercially available bifunctional cross-linker. Conjugation had little effect on the optical properties of the nanocrystals, and the resulting conjugates were more stable than previously reported systems. By using the strategies developed in this study, most biomolecules can be covalently coupled to semiconductor nanocrystals. These nanocrystal-DNA conjugates promise to be a versatile tool for fluorescence imaging and probing of biological systems. |
| Related Item:Host | |
|
Title Information |
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Title |
Chem. Mater. |
|
Origin Information |
|
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Issuance |
continuing |
|
Part |
|
|
Part Detail:volume |
|
|
Part Number |
14 |
|
Part Detail:issue |
|
|
Part Number |
5 |
|
Extent(unit="pages") |
|
|
Start |
2113 |
|
End |
2119 |
|
Genre(marcgt) |
periodical |
| Identifier | par02 |
| Identifier:DOI | 10.1021/cm0107878 |
| Location | |
|
URL |
http://dx.doi.org/10.1021/cm0107878 |
| Title Information | |
|
Title |
Conformation of Oligonucleotides Attached to Gold Nanocrystals Probed by Gel Electrophoresis |
| Name:Personal | |
|
Name Part:given |
Wolfgang J. |
|
Name Part:family |
Parak |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Teresa |
|
Name Part:family |
Pellegrino |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Christine M. |
|
Name Part:family |
Micheel |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Daniele |
|
Name Part:family |
Gerion |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Shara C. |
|
Name Part:family |
Williams |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
A. Paul |
|
Name Part:family |
Alivisatos |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | Thiol-modified single stranded oligonucleotides of different lengths (8 to 135 bases) were attached to the surface of 10 nm diameter {A}u nanocrystals with different {DNA}/{A}u ratios (1, 2, ..., saturation). {T}he electrophoretic mobility of these conjugates was determined on 2\% agarose gels, and the effective diameter of the {DNA}/{A}u conjugates was determined. {T}his diameter depends on the conformation of the oligonucleotides adsorbed on the {A}u surface. {F}or low surface coverage, nonspecific wrapping of the {DNA} around the nanoparticles was observed. {F}or high surface coverage, short oligonucleotides were shown to be oriented perpendicular to the surface and fully stretched. {F}or high surface coverage and long oligonucleotides, the inner part close to the {A}u surface was determined to be fully stretched and pointed perpendicular to the surface, whereas the outer part adopts random coil shape. |
| Related Item:Host | |
|
Title Information |
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Title |
Nano Lett. |
|
Origin Information |
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Issuance |
continuing |
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Part |
|
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Part Detail:volume |
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Part Number |
3 |
|
Part Detail:issue |
|
|
Part Number |
1 |
|
Extent(unit="pages") |
|
|
Start |
33 |
|
End |
36 |
|
Genre(marcgt) |
periodical |
| Identifier | par03 |
| Identifier:DOI | 10.1021/nl025888z |
| Location | |
|
URL |
http://dx.doi.org/10.1021/nl025888z |
| Title Information | |
|
Title |
Changes in Oligonucleotide Conformation on Nanoparticle Surfaces by Modification with Mercaptohexanol |
| Name:Personal | |
|
Name Part:given |
Sunho |
|
Name Part:family |
Park |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Katherine A. |
|
Name Part:family |
Brown |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Kimberly |
|
Name Part:family |
Hamad-Schifferli |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | The conformation of thiol-linked oligonucleotides on the surface of Au nanoparticles was controlled by treatment with 6-mercapto-1-hexanol (MCH). MCH displaces noncovalent base adsorption to the surface, changing the oligo conformation on the Au surface. By controlling MCH concentration and reaction time, a change in effective size (Deff) of the Au-DNA conjugates and improved hybridization ability was observed, suggesting a reduced nonspecific adsorption of the oligo to the Au. |
| Related Item:Host | |
|
Title Information |
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|
Title |
Nano Lett. |
|
Origin Information |
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|
Issuance |
continuing |
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Part |
|
|
Part Detail:volume |
|
|
Part Number |
4 |
|
Part Detail:issue |
|
|
Part Number |
10 |
|
Extent(unit="pages") |
|
|
Start |
1925 |
|
End |
1929 |
|
Genre(marcgt) |
periodical |
| Identifier | par04 |
| Identifier:DOI | 10.1021/nl048920t |
| Location | |
|
URL |
http://dx.doi.org/10.1021/nl048920t |
| Title Information | |
|
Title |
Nonlinear optical measurement of membrane potential around single molecules at selected cellular sites |
| Name:Personal | |
|
Name Part:given |
Gadi |
|
Name Part:family |
Peleg |
|
Role |
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Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Aaron |
|
Name Part:family |
Lewis |
|
Role |
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Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Michal |
|
Name Part:family |
Linial |
|
Role |
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|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Leslie M. |
|
Name Part:family |
Loew |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | Membrane potential around single molecules has been measured by using the nonlinear optical phenomenon of second harmonic generation. This advance results from the interaction between a highly dipolar molecule with a selectively directed highly polarizable 1-nm gold particle. With this approach, a second harmonic signal, which is enhanced by the nanoparticle, is detected from a volume of nanometric dimensions. This present work clearly shows that functional cellular imaging around single molecules is possible by selectively directing an antibody with a 1-nm gold label to a specific membrane protein. The results of this work open the way for three-dimensional, high resolution functional imaging of membrane electrophysiology in cells and cellular networks. |
| Related Item:Host | |
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Title Information |
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Title |
Proc. Natl. Acad. Sci. USA |
|
Origin Information |
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Issuance |
continuing |
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Part |
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Part Detail:volume |
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Part Number |
96 |
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Part Detail:issue |
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Part Number |
12 |
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Extent(unit="pages") |
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Start |
6700 |
|
End |
6704 |
|
Genre(marcgt) |
periodical |
| Identifier | pel99 |
| Identifier:DOI | 10.1073/pnas.96.12.6700 |
| Location | |
|
URL |
http://www.pnas.org/cgi/content/abstract/96/12/6700 |
|
URL |
http://dx.doi.org/10.1073/pnas.96.12.6700 |
| Title Information | |
|
Title |
On the Development of Colloidal Nanoparticles towards Multifunctional Structures and their Possible Use for Biological Applications |
| Name:Personal | |
|
Name Part:given |
Teresa |
|
Name Part:family |
Pellegrino |
|
Role |
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Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Stefan |
|
Name Part:family |
Kudera |
|
Role |
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Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Tim |
|
Name Part:family |
Liedl |
|
Role |
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Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Almudena |
|
Name Part:family |
Muñoz-Javier |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Liberato |
|
Name Part:family |
Manna |
|
Role |
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|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Wolfgang J. |
|
Name Part:family |
Parak |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | In this Review, we describe the synthesis of high-quality colloidal nanoparticles in organic solvents, the mechanisms by which they can be transferred into aqueous solution, and some of their applications in biology. In particular, we will place emphasis on the creation of multifunctional nanoparticles or nanoparticle assemblies. |
| Subject | |
|
Topic |
biological systems |
|
Topic |
colloids |
|
Topic |
DNA |
|
Topic |
hybrid materials |
|
Topic |
nanoparticles |
| Related Item:Host | |
|
Title Information |
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|
Title |
Small |
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Origin Information |
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Issuance |
continuing |
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Part |
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Part Detail:volume |
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Part Number |
1 |
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Part Detail:issue |
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Part Number |
1 |
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Extent(unit="pages") |
|
|
Start |
48 |
|
End |
63 |
|
Genre(marcgt) |
periodical |
| Identifier | pel05 |
| Identifier:DOI | 10.1002/smll.200400071 |
| Location | |
|
URL |
http://dx.doi.org/10.1002/smll.200400071 |
| Title Information | |
|
Title |
Optically Induced Damping of the Surface Plasmon Resonance in Gold Colloids |
| Name:Personal | |
|
Name Part:given |
M. |
|
Name Part:family |
Perner |
|
Role |
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|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
P. |
|
Name Part:family |
Bost |
|
Role |
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|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
U. |
|
Name Part:family |
Lemmer |
|
Role |
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Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
G. |
|
Name Part:family |
von Plessen |
|
Role |
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|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
J. |
|
Name Part:family |
Feldmann |
|
Role |
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|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
U. |
|
Name Part:family |
Becker |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
M. |
|
Name Part:family |
Mennig |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
M. |
|
Name Part:family |
Schmitt |
|
Role |
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|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
H. |
|
Name Part:family |
Schmidt |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | The surface plasmon damping induced by high excitation of the electron gas is studied in femtosecond pump-and-probe experiments on gold colloids embedded in a sol-gel matrix. Optical excitation of single-particle interband transitions leads to a pronounced broadening of the surface plasmon line. A similar behavior is observed for resonant excitation of the surface plasmon. This broadening is the dominant optical nonlinearity of the system, and reflects the excitation-induced damping of the surface plasmon resonance. The time evolution of the damping rate follows that of the electronic scattering rate. |
| Related Item:Host | |
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Title Information |
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Title |
Phys. Rev. Lett. |
|
Origin Information |
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Issuance |
continuing |
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Part |
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Part Detail:volume |
|
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Part Number |
78 |
|
Part Detail:issue |
|
|
Part Number |
11 |
|
Extent(unit="pages") |
|
|
Start |
2192 |
|
End |
2195 |
|
Genre(marcgt) |
periodical |
| Identifier | per97a |
| Identifier:DOI | 10.1103/PhysRevLett.78.2192 |
| Location | |
|
URL |
http://dx.doi.org/10.1103/PhysRevLett.78.2192 |
| Title Information | |
|
Title |
Pore size of agarose gels by atomic force microscopy |
| Name:Personal | |
|
Name Part:given |
Nadine |
|
Name Part:family |
Pernodet |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Mounir |
|
Name Part:family |
Maaloum |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Bernard |
|
Name Part:family |
Tinland |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | The pore size of agarose gel in water at different concentrations was directly measured using atomic force microscopy (AFM). The experiment was specially designed to work under aqueous conditions and allows direct observation of the ?unperturbed? gel without invasive treatment. The pore size a as a function of gel concentration C shows a power law dependence a ? C-?, where ? lies between the prediction of the Ogston model for a random array of straight chains, 0.5, and the value predicted by De Gennes for a network of flexible chains, 0.75. We confirm that gels present a wide pore size distribution and show that it narrows as the concentration increases. |
| Related Item:Host | |
|
Title Information |
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|
Title |
Electrophoresis |
|
Origin Information |
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Issuance |
continuing |
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Part |
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Part Detail:volume |
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Part Number |
18 |
|
Part Detail:issue |
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|
Part Number |
1 |
|
Extent(unit="pages") |
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|
Start |
55 |
|
End |
58 |
|
Genre(marcgt) |
periodical |
| Identifier | per97 |
| Identifier:DOI | 10.1002/elps.1150180111 |
| Location | |
|
URL |
http://dx.doi.org/10.1002/elps.1150180111 |
| Title Information | |
|
Title |
Electron-hole-pair quenching of excited states near a metal |
| Name:Personal | |
|
Name Part:given |
B. N. J. |
|
Name Part:family |
Persson |
|
Role |
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|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
N. D. |
|
Name Part:family |
Lang |
|
Role |
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|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | We present a calculation of the nonradiative damping of a dipole outside a metal surface. The calculation uses a realistic surface potential for the metal conduction electrons in contrast to most earlier studies. A simple experiment is suggested to test the theoretical predictions. |
| Related Item:Host | |
|
Title Information |
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|
Title |
Phys. Rev. B |
|
Origin Information |
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Issuance |
continuing |
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Part |
|
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Part Detail:volume |
|
|
Part Number |
26 |
|
Part Detail:issue |
|
|
Part Number |
10 |
|
Extent(unit="pages") |
|
|
Start |
5409 |
|
Genre(marcgt) |
periodical |
| Identifier | per82 |
| Identifier:DOI | 10.1103/PhysRevB.26.5409 |
| Location | |
|
URL |
http://link.aps.org/abstract/PRB/v26/p5409 |
|
URL |
http://dx.doi.org/10.1103/PhysRevB.26.5409 |
| Title Information | |
|
Title |
Hybridization and Enzymatic Extension of Au Nanoparticle-Bound Oligonucleotides |
| Name:Personal | |
|
Name Part:given |
Sheila R. Nicewarner |
|
Name Part:family |
Peña |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Surabhi |
|
Name Part:family |
Raina |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Glenn P. |
|
Name Part:family |
Goodrich |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Nina V. |
|
Name Part:family |
Fedoroff |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Christine D. |
|
Name Part:family |
Keating |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | We have investigated the impact of steric effects on the hybridization and enzymatic extension of oligonucleotides bound to 12-nm colloidal Au particles. In these experiments, a nanoparticle-bound 12-mer sequence is hybridized either to its solution phase 12-mer complement or to an 88-mer template sequence. The particle-bound oligonucleotide serves as a primer for enzymatic extension reactions, in which covalent incorporation of nucleotides to form the complement of the template is achieved by the action of DNA polymerase. Primers were attached via-C6H12SH, -C12H24SH, and -TTACAATC6H12SH linkers attached at the 5' end. Primer coverage on the nanoparticles was varied by dilution with 5'HSC6H12AAA AAA3'. Hybridization efficiencies were determined as a function of linker length, primer coverage, complement length (12-mer vs 88-mer), and primer:complement concentration ratio. In all cases, hybridization for the 88-mer was less efficient than for the 12-mer. Low primer surface coverages, greater particle-primer separation, and higher primer:complement ratios led to optimal hybridization. Hybridization efficiencies as high as 98% and 75% were observed for the 12-mer and 88-mer, respectively. Enzymatic extension of particle-bound primers was observed under all conditions tested; however, the efficiency of the reaction was strongly affected by linker length and primer coverage. Extension of primers attached by the longest linker was as efficient as the solution-phase reaction. |
| Related Item:Host | |
|
Title Information |
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|
Title |
J. Am. Chem. Soc. |
|
Origin Information |
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Issuance |
continuing |
|
Part |
|
|
Part Detail:volume |
|
|
Part Number |
124 |
|
Part Detail:issue |
|
|
Part Number |
25 |
|
Extent(unit="pages") |
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|
Start |
7314 |
|
End |
7323 |
|
Genre(marcgt) |
periodical |
| Identifier | pen01 |
| Identifier:DOI | 10.1021/ja0177915 |
| Location | |
|
URL |
http://dx.doi.org/10.1021/ja0177915 |
| Title Information | |
|
Title |
Stretched exponential relaxation in molecular and electronic glasses |
| Name:Personal | |
|
Name Part:given |
J. C. |
|
Name Part:family |
Phillips |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | Stretched exponential relaxation, exp[?(t /tau)^beta], fits many relaxation processes in disordered and quenched electronic and molecular systems, but it is widely believed that this function has no microscopic basis, especially in the case of molecular relaxation. For electronic relaxation the appearance of the stretched exponential is often described in the context of dispersive transport, where beta iis treated as an adjustable parameter, but in almost all cases it is generally assumed that no microscopic meaning can be assigned to 0 < beta(T) < 1 even at T = Tg, a glass transition temperature. We show that for molecular relaxation beta(Tg) can be understood, providing that one separates extrinsic and intrinsic effects, and that the intrinsic effects are dominated by two magic numbers, beta_SR = 3/5 for short-range forces, and beta_K = 3/7 for long-range Coulomb forces, as originally observed by Kohlrausch for the decay of residual charge on a Leyden jar. Our mathematical model treats relaxation kinetics using the Lifshitz? Kac?Luttinger diffusion to traps depletion model in a configuration space of effective dimensionality, the latter being determined using axiomatic set theory and Phillips?Thorpe constraint theory. The experiments discussed include ns neutron scattering experiments, particularly those based on neutron spin echoes which measure S(Q, t) directly, and the traditional linear response measurements which span the range from µs to s, as collected and analysed phenomenologically by Angell, Ngai, B¨ohmer and others. The electronic materials discussed include a-Si:H, granular C60, semiconductor nanocrystallites, charge density waves in TaS3, spin glasses, and vortex glasses in high-temperature semiconductors. The molecular materials discussed include polymers, network glasses, electrolytes and alcohols, Van der Waals supercooled liquids and glasses, orientational glasses, water, fused salts, and heme proteins. In the intrinsic cases the theory of beta(Tg) is often accurate to 2%, which is often better than the quoted experimental accuracies 5%. The extrinsic cases are identified by explicit structural signatures which are discussed at length. The discussion also includes recent molecular dynamical simulations for metallic glasses, spin glasses, quasicrystals and polymers which have achieved the intermediate relaxed Kohlrausch state and which have obtained values of beta in excellent agreement with the prediction of the microscopic theory. |
| Related Item:Host | |
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Title Information |
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|
Title |
Rep. Prog. Phys. |
|
Origin Information |
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Issuance |
continuing |
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Part |
|
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Part Detail:volume |
|
|
Part Number |
59 |
|
Part Detail:issue |
|
|
Part Number |
9 |
|
Extent(unit="pages") |
|
|
Start |
1133 |
|
End |
1207 |
|
Genre(marcgt) |
periodical |
| Identifier | phi96 |
| Identifier:DOI | 10.1088/0034-4885/59/9/003 |
| Location | |
|
URL |
http://stacks.iop.org/0034-4885/59/1133 |
|
URL |
http://dx.doi.org/10.1088/0034-4885/59/9/003 |
| Title Information | |
|
Title |
Fluorescence quenching in molecules near rough metal surfaces |
| Name:Personal | |
|
Name Part:given |
Andrew C. |
|
Name Part:family |
Pineda |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
David |
|
Name Part:family |
Ronis |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | A classical electrodynamic near field calculation for the interaction of a Drude oscillator molecular dipole with a rough metal surface is presented. Effects of electromagnetic coupling between surface bumps (assumed to be prolate hemispheroids) and the bulk metal are included. Fluorescence lifetimes are found to be two to four orders of magnitude smaller than those predicted for a flat plane in calculations on silver, and for sufficiently short distances, an avoided crossing splitting is predicted. |
| Related Item:Host | |
|
Title Information |
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|
Title |
J. Chem. Phys. |
|
Origin Information |
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Issuance |
continuing |
|
Part |
|
|
Part Detail:volume |
|
|
Part Number |
83 |
|
Part Detail:issue |
|
|
Part Number |
10 |
|
Extent(unit="pages") |
|
|
Start |
5330 |
|
End |
5337 |
|
Genre(marcgt) |
periodical |
| Identifier | pin85 |
| Identifier:DOI | 10.1063/1.449695 |
| Location | |
|
URL |
http://dx.doi.org/10.1063/1.449695 |
| Title Information | |
|
Title |
Surface enhanced Raman scattering (SERS) from pyridine on silver-UHV interfaces: Excitation spectra |
| Name:Personal | |
|
Name Part:given |
I. |
|
Name Part:family |
Pockrand |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
J. |
|
Name Part:family |
Billmann |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
A. |
|
Name Part:family |
Otto |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Subject | |
|
Topic |
raman spectra |
|
Topic |
silver |
|
Topic |
surface properties |
|
Topic |
pyridines |
|
Topic |
adsorption |
|
Topic |
chemical enhancement |
| Related Item:Host | |
|
Title Information |
|
|
Title |
J. Chem. Phys. |
|
Origin Information |
|
|
Issuance |
continuing |
|
Part |
|
|
Part Detail:volume |
|
|
Part Number |
78 |
|
Part Detail:issue |
|
|
Part Number |
11 |
|
Extent(unit="pages") |
|
|
Start |
6384 |
|
End |
6390 |
|
Genre(marcgt) |
periodical |
| Identifier | poc83 |
| Identifier:DOI | 10.1063/1.444698 |
| Location | |
|
URL |
http://link.aip.org/link/?JCP/78/6384/1 |
|
URL |
http://dx.doi.org/10.1063/1.444698 |
| Title Information | |
|
Title |
Nonradiative decay of excited molecules near a metal surface |
| Name:Personal | |
|
Name Part:given |
I. |
|
Name Part:family |
Pockrand |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
A. |
|
Name Part:family |
Brillante |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
D. |
|
Name Part:family |
Möbius |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | Nonradiative energy transfer from excited dye molecules near a metal surface to plasmon surface polaritons has been investigated experimentally. By using the Langmuir-Blodgett technique, the molecule-metal separation was varied and the coupling efficiency measured with the inverse attenuated-total-reflection technique. For an orientation of the transition dipole moment of the dye parallel to a silver surface and nonresonant interaction, maximum energy transfer to plasmon surface polaritons was observed for a molecule-silver spacing of about 18 nm. Reducing the spacing results in a monotonic decrease of the coupling efficiency: this decay channel becomes unimportant and eventually vanishes if the molecule is placed very close to the metal surface. The experimental results are discussed in connection with theoretical predictions and the surface-enhanced Raman scattering observed for some adsorbates at metal surfaces. |
| Related Item:Host | |
|
Title Information |
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|
Title |
Chem. Phys. Lett. |
|
Origin Information |
|
|
Issuance |
continuing |
|
Part |
|
|
Part Detail:volume |
|
|
Part Number |
69 |
|
Part Detail:issue |
|
|
Part Number |
3 |
|
Extent(unit="pages") |
|
|
Start |
499 |
|
End |
504 |
|
Genre(marcgt) |
periodical |
| Identifier | poc80 |
| Identifier:DOI | 10.1016/0009-2614(80)85113-X |
| Location | |
|
URL |
http://dx.doi.org/10.1016/0009-2614(80)85113-X |
| Title Information | |
|
Title |
Giant Optical Responses in Microcavity-Fractal Composites |
| Name:Personal | |
|
Name Part:given |
V. A. |
|
Name Part:family |
Podolskiy |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
V. M. |
|
Name Part:family |
Shalaev |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | Optical properties of fractal nanostructured composite materials are considered. The fractal geom- etry results in localization of plasmon excitations in the ?hot? spots, where the local field can exceed the applied field by several orders of magnitude. The high local fields of the localized fractal modes result in dramatic enhancement of optical responses, making feasible the surface-enhanced nonlinear spectroscopy of single mol- ecules and nanocrystals. The field enhancement becomes especially large when fractals are placed inside a microcavity. A theory for the enhanced Raman and hyper-Raman surface-enhanced scattering in microcavity? fractal composites is developed. |
| Related Item:Host | |
|
Title Information |
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|
Title |
Laser Phys. |
|
Origin Information |
|
|
Issuance |
continuing |
|
Part |
|
|
Part Detail:volume |
|
|
Part Number |
11 |
|
Part Detail:issue |
|
|
Part Number |
1 |
|
Extent(unit="pages") |
|
|
Start |
26 |
|
End |
30 |
|
Genre(marcgt) |
periodical |
| Identifier | pod01 |
| Title Information | |
|
Title |
Enhanced Raman scattering from self-affine thin films |
| Name:Personal | |
|
Name Part:given |
Evgeni Y. |
|
Name Part:family |
Poliakov |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Vladimir M. |
|
Name Part:family |
Shalaev |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Vadim A. |
|
Name Part:family |
Markel |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | Surface-enhanced Raman scattering (SERS) from a self-affine surface is shown to be very large. A theory is developed expressing this SERS in terms of the eigenmodes of a self-affine surface; the theory successfully explains the observed SERS from cold-deposited thin films that are known to have a self-affine structure. Spatial distributions of local fields at the fundamental and Stokes frequencies are strongly inhomogeneous and contain hot zones (high-field areas) localized in nanometer-sized regions that can be spatially separated for the two waves. |
| Related Item:Host | |
|
Title Information |
|
|
Title |
Opt. Lett. |
|
Origin Information |
|
|
Issuance |
continuing |
|
Part |
|
|
Part Detail:volume |
|
|
Part Number |
21 |
|
Part Detail:issue |
|
|
Part Number |
20 |
|
Extent(unit="pages") |
|
|
Start |
1628 |
|
Genre(marcgt) |
periodical |
| Identifier | pol96 |
| Location | |
|
URL |
http://www.opticsinfobase.org/abstract.cfm?URI=ol-21-20-1628 |
| Title Information | |
|
Title |
Absorption spectrum (380 -700 nm) of pure water. II. Integrating cavity measurements |
| Name:Personal | |
|
Name Part:given |
Robin M. |
|
Name Part:family |
Pope |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Edward S. |
|
Name Part:family |
Fry |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | Definitive data on the absorption spectrum of pure water from 380 to 700 nm have been obtained with an integrating cavity technique. The results are in good agreement with those recently obtained by our group with a completely independent photothermal technique. As before, we find that the absorption in the blue is significantly lower than had previously been generally believed and that the absorption minimum is at a significantly shorter wavelength, i.e., 0.0044 -/+ 0.0006 m-1 at 418 nm. Several spectroscopic features have been identified in the visible spectrum to our knowledge for the first time. |
| Related Item:Host | |
|
Title Information |
|
|
Title |
Appl. Opt. LPEO |
|
Origin Information |
|
|
Issuance |
continuing |
|
Part |
|
|
Part Detail:volume |
|
|
Part Number |
36 |
|
Part Detail:issue |
|
|
Part Number |
33 |
|
Extent(unit="pages") |
|
|
Start |
8710 |
|
End |
8723 |
|
Genre(marcgt) |
periodical |
| Identifier | pop97 |
| Location | |
|
URL |
http://aolp.osa.org/abstract.cfm?id=63107 |
| Title Information | |
|
Title |
Combined fluorescent and gold immunoprobes: Reagents and methods for correlative light and electron microscopy |
| Name:Personal | |
|
Name Part:given |
Richard D. |
|
Name Part:family |
Powell |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Carol M. R. |
|
Name Part:family |
Halsey |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
James F. |
|
Name Part:family |
Hainfeld |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | Immunoprobes which incorporate both a fluorescent label and a 1.4 nm gold cluster compound were prepared by covalent conjugation to Fab antibody fragments of the Nanogold cluster label followed by a fluorescent moiety. These new immunoconjugates allow the collection of two complementary sets of data, from fluorescence and electron microscopy, from a single labeling experiment. By using Fab fragments, the entire probe is smaller than a whole IgG molecule. A simple fluorescence assay was used to investigate the fluorescence properties of the new probes. They were used to localize the pre-mRNA splicing factor SC35 in the HeLa cell nucleus by both fluorescence and electron microscopy, and also for labeling leukocyte microtubules; labeling was imaged using fluorescence microscopy and, after silver enhancement, by a variety of optical methods and by electron microscopy. Combined Nanogold and Texas Red, Cy3, Lissamine Rhodamine B, and AMCA probes were also prepared, and in preliminary experiments show similar properties to the combined fluorescein and gold cluster probes. The fluorescent and gold cluster probes enable a new degree of correlation between fluorescence and electron microscopy, and may also be used to check labeling of specimens before processing for electron microscopy. |
| Subject | |
|
Topic |
immunogold |
|
Topic |
electron microscopy |
|
Topic |
immunofluorescence |
|
Topic |
immunoprobe |
|
Topic |
antibody |
|
Topic |
cluster |
|
Topic |
fluorescence microscopy |
|
Topic |
nucleus |
| Related Item:Host | |
|
Title Information |
|
|
Title |
Microsc. Res. Tech. |
|
Origin Information |
|
|
Issuance |
continuing |
|
Part |
|
|
Part Detail:volume |
|
|
Part Number |
42 |
|
Part Detail:issue |
|
|
Part Number |
1 |
|
Extent(unit="pages") |
|
|
Start |
2 |
|
End |
12 |
|
Genre(marcgt) |
periodical |
| Identifier | pow98 |
| Location | |
|
URL |
http://www3.interscience.wiley.com/cgi-bin/abstract/38634/ABSTRACT |
| Title Information | |
|
Title |
A Covalent Fluorescent-Gold Immunoprobe: Simultaneous Detection of a Pre-mRNA Splicing Factor by Light and Electron Microscopy |
| Name:Personal | |
|
Name Part:given |
Richard D. |
|
Name Part:family |
Powell |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Carol M. R. |
|
Name Part:family |
Halsey |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
David L. |
|
Name Part:family |
Spector |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Shelley L. |
|
Name Part:family |
Kaurin |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Jennifer |
|
Name Part:family |
McCann |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
James F. |
|
Name Part:family |
Hainfeld |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | Immunoprobes that combine a fluorescent label with a 1.4-nm gold cluster compound have been prepared by covalent conjugation with polyclonal antibody Fab' fragments. These new immunoconjugates allow the collection of two complementary sets of data, from fluorescence and electron microscopy, from a single labeling experiment. We find that incorporation of one or more fluorescein moieties into the coordinated ligands of the 1.4-nm Nanogold gold cluster label yields a stable, dual-function immunolabel in which fluorescence quenching is negligible. In a second synthetic strategy, Nanogold and fluorescein were separately covalently conjugated to Fab' fragments to yield a probe with very similar properties. With the use of Fab' fragments, the entire probe is smaller than a whole IgG molecule, and it exhibited excellent penetration properties. It was used to localize the pre-mRNA splicing factor SC35 in the HeLa cell nucleus by both fluorescence and electron microscopy. |
| Subject | |
|
Topic |
immunogold |
|
Topic |
immunofluorescence antibody |
|
Topic |
fluorescence microscopy |
|
Topic |
electron microscopy |
|
Topic |
immunoprobe |
|
Topic |
cluster |
|
Topic |
nucleus |
| Related Item:Host | |
|
Title Information |
|
|
Title |
J. Histochem. Cytochem. |
|
Origin Information |
|
|
Issuance |
continuing |
|
Part |
|
|
Part Detail:volume |
|
|
Part Number |
45 |
|
Part Detail:issue |
|
|
Part Number |
7 |
|
Extent(unit="pages") |
|
|
Start |
947 |
|
End |
956 |
|
Genre(marcgt) |
periodical |
| Identifier | pow97 |
| Location | |
|
URL |
http://www.jhc.org/cgi/content/abstract/45/7/947 |
| Title Information | |
|
Title |
Spontaneous Emission Probabilities at Radio Frequencies |
| Name:Personal | |
|
Name Part:given |
E. M. |
|
Name Part:family |
Purcell |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Note | B10 |
| Related Item:Host | |
|
Title Information |
|
|
Title |
Phys. Rev. |
|
Origin Information |
|
|
Issuance |
continuing |
|
Part |
|
|
Part Detail:volume |
|
|
Part Number |
69 |
|
Part Detail:issue |
|
|
Part Number |
11-12 |
|
Extent(unit="pages") |
|
|
Start |
674 |
|
Genre(marcgt) |
periodical |
| Identifier | pur47 |
| Identifier:DOI | 10.1103/PhysRev.69.674.2 |
| Location | |
|
URL |
http://dx.doi.org/10.1103/PhysRev.69.674.2 |
| Title Information | |
|
Title |
Microscopic theory of surface-enhanced Raman scattering in noble-metal nanoparticles |
| Name:Personal | |
|
Name Part:given |
V. N. |
|
Name Part:family |
Pustovit |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
T. V. |
|
Name Part:family |
Shahbazyan |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | We present a microscopic model for surface-enhanced Raman scattering (SERS) from molecules adsorbed on small noble-metal nanoparticles. In the absence of direct overlap of molecular orbitals and electronic states in the metal, the main enhancement source is the strong electric field of the surface plasmon resonance in a nanoparticle acting on a molecule near the surface. In small particles, the electromagnetic enhancement is strongly modified by quantum-size effects. We show that, in nanometer-sized particles, SERS magnitude is determined by a competition between several quantum-size effects such as the Landau damping of surface plasmon resonance and reduced screening near the nanoparticle surface. Using time-dependent local density approximation, we calculate spatial distribution of local fields near the surface and enhancement factor for different nanoparticles sizes. |
| Subject | |
|
Topic |
metals |
|
Topic |
nanoparticles |
|
Topic |
surface enhanced Raman scattering |
|
Topic |
size effect |
|
Topic |
Landau levels |
|
Topic |
surface plasmon resonance |
|
Topic |
density functional theory |
| Related Item:Host | |
|
Title Information |
|
|
Title |
Phys. Rev. B |
|
Origin Information |
|
|
Issuance |
continuing |
|
Part |
|
|
Part Detail:volume |
|
|
Part Number |
73 |
|
Part Detail:issue |
|
|
Part Number |
8 |
|
Extent(unit="pages") |
|
|
Start |
085408 |
|
Genre(marcgt) |
periodical |
| Identifier | pus06 |
| Identifier:DOI | 10.1103/PhysRevB.73.085408 |
| Location | |
|
URL |
http://dx.doi.org/10.1103/PhysRevB.73.085408 |
| Title Information | |
|
Title |
Finite-size effects in surface-enhanced Raman scattering in noble-metal nanoparticles: a semiclassical approach |
| Name:Personal | |
|
Name Part:given |
Vitaliy N. |
|
Name Part:family |
Pustovit |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Tigran V. |
|
Name Part:family |
Shahbazyan |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | We study finite-size effects in surface-enhanced Raman scattering (SERS) from molecules adsorbed on small metal particles. Within an electromagnetic description of SERS, the enhancement of the Raman signal originates from the local field of the surface plasmon resonance in a nanoparticle. With decreasing particle sizes, this enhancement is reduced due to the size-dependent Landau damping of the surface plasmon. We show that, in small noble-metal particles, the reduction of interband screening in the surface layer leads to an additional increase in the local field acting on a molecule close to the metal surface. The overall size dependence of Raman signal enhancement is determined by the interplay between Landau damping and underscreening effects. Our calculations, based on a two-region model, show that the role of the surface layer increases for smaller nanoparticle sizes due to a larger volume fraction of the underscreened region. |
| Related Item:Host | |
|
Title Information |
|
|
Title |
J. Opt. Soc. Am. A |
|
Origin Information |
|
|
Issuance |
continuing |
|
Part |
|
|
Part Detail:volume |
|
|
Part Number |
23 |
|
Part Detail:issue |
|
|
Part Number |
6 |
|
Extent(unit="pages") |
|
|
Start |
1369 |
|
End |
1374 |
|
Genre(marcgt) |
periodical |
| Identifier | pus06a |
| Location | |
|
URL |
http://josaa.osa.org/abstract.cfm?id=89878 |
| Title Information | |
|
Title |
SERS from molecules adsorbed on small Ag nanoparticles: A microscopic model |
| Name:Personal | |
|
Name Part:given |
Vitaliy N. |
|
Name Part:family |
Pustovit |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Tigran V. |
|
Name Part:family |
Shahbazyan |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | A microscopic approach to surface-enhanced Raman scattering (SERS) from molecules adsorbed on noble-metal nanoparticles is developed. For nanoparticle sizes smaller than 10 nm, the classical electromagnetic enhancement mechanism is modified by quantum-size effects. Using time-dependent local field approximation, we perform systematic analysis of SERS in nanometer-sized Ag nanoparticles. We find that, in small nanoparticles, Raman cross-section enhancement is governed by the interplay between Landau damping of the surface plasmon and interband screening in the nanoparticle surface layer. |
| Related Item:Host | |
|
Title Information |
|
|
Title |
Chem. Phys. Lett. |
|
Origin Information |
|
|
Issuance |
continuing |
|
Part |
|
|
Part Detail:volume |
|
|
Part Number |
420 |
|
Part Detail:issue |
|
|
Part Number |
4-6 |
|
Extent(unit="pages") |
|
|
Start |
469 |
|
End |
473 |
|
Genre(marcgt) |
periodical |
| Identifier | pus06b |
| Identifier:DOI | 10.1016/j.cplett.2005.12.082 |
| Location | |
|
URL |
http://www.sciencedirect.com/science/article/B6TFN-4J5T61Y-2/2/a5a567f08503621d62079854382b528a |
|
URL |
http://dx.doi.org/10.1016/j.cplett.2005.12.082 |
| Title Information | |
|
Title |
Characterization and crystallization of core streptavidin |
| Name:Personal | |
|
Name Part:given |
Arno |
|
Name Part:family |
Pähler |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Wayne A. |
|
Name Part:family |
Hendrickson |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Mary Ann |
|
Name Part:family |
Gawinowicz Kolks |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Carlos E. |
|
Name Part:family |
Argaraña |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Charles R. |
|
Name Part:family |
Cantor |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | We have characterized a streptavidin product that had been reduced to a minimal size that still retained full biotin-binding activity. This core streptavidin is proteolyzed at both ends at points that correspond closely with the termini of hen egg white avidin. Core streptavidin is more soluble than is the parent molecule. We have grown three different types of crystals of core streptavidin. The symmetry properties of these crystals prove that the molecule is a tetramer organized in tetrahedral (D2) point symmetry. The crystallographic response to the interaction of biotin with core streptavidin indicates that some conformational change accompanies ligand binding. We are attempting to determine the three-dimensional structure of streptavidin and its complex with selenobiotin from these crystals of core streptavidin. |
| Related Item:Host | |
|
Title Information |
|
|
Title |
J. Biol. Chem. |
|
Origin Information |
|
|
Issuance |
continuing |
|
Part |
|
|
Part Detail:volume |
|
|
Part Number |
262 |
|
Part Detail:issue |
|
|
Part Number |
29 |
|
Extent(unit="pages") |
|
|
Start |
13933 |
|
End |
13937 |
|
Genre(marcgt) |
periodical |
| Identifier | pah87 |
| Location | |
|
URL |
http://www.jbc.org/cgi/content/abstract/262/29/13933 |
| Title Information | |
|
Title |
Silica gels with tailored, gold nanorod-driven optical functionalities |
| Name:Personal | |
|
Name Part:given |
Jorge |
|
Name Part:family |
Pérez-Juste |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Miguel A. |
|
Name Part:family |
Correa-Duarte |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Luis M. |
|
Name Part:family |
Liz-Marzán |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | The incorporation of metal nanoparticles with various size and shapes provides silica gels with optical functionalities arising from the characteristic optical properties of the starting nanoparticle dispersions. The uniform distribution of the preformed nanoparticles and their mutual separation within the gels are key factors to maintain single-particle properties. These requirements are achieved by coating the nanoparticles with thin silica shells, which greatly enhance their stability and ensure separation between metal nanoparticle cores. The great advantage of this procedure is its ability to use nanoparticles with tailored shapes and thus to expand the possible functionalities to be implemented. We show the incorporation of gold nanorods with varying aspect ratio, which allows to have well-defined absorption bands even in the near infrared. |
| Subject | |
|
Topic |
Nano-materials |
|
Topic |
Silica gels |
|
Topic |
Gold nanorods |
|
Topic |
Optical properties |
| Related Item:Host | |
|
Title Information |
|
|
Title |
Appl. Surf. Sci. |
|
Origin Information |
|
|
Issuance |
continuing |
|
Part |
|
|
Part Detail:volume |
|
|
Part Number |
226 |
|
Part Detail:issue |
|
|
Part Number |
1-3 |
|
Extent(unit="pages") |
|
|
Start |
137 |
|
End |
143 |
|
Genre(marcgt) |
periodical |
| Identifier | per04 |
| Identifier:DOI | 10.1016/j.apsusc.2003.11.013 |
| Location | |
|
URL |
http://dx.doi.org/10.1016/j.apsusc.2003.11.013 |
| Title Information | |
|
Title |
Absorption and elastic scattering of light by particle aggregates |
| Name:Personal | |
|
Name Part:given |
Michael |
|
Name Part:family |
Quinten |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Uwe |
|
Name Part:family |
Kreibig |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | Light scattering and absorption by spherical particles is extended to aggregates of spheres with arbitrary shape and size. We applied the theory of Gérardy and Ausloos [Phys. Rev. B 25, 4204-4229 (1082)] tocompute the total extinction loss spectra of several aggregates of nanometer-sized silver spheres from thenear IR to the near UV. Silver was best suited to provide quantitative comparison with experiments concerning the scattering and absorption in the visible spectral region. Additional resonant extinction was obtained besides the resonant extinction of the single silver sphere. The spectra were discussed in detail to give general results that are independent of the particle material. |
| Related Item:Host | |
|
Title Information |
|
|
Title |
Appl. Opt. |
|
Origin Information |
|
|
Issuance |
continuing |
|
Part |
|
|
Part Detail:volume |
|
|
Part Number |
32 |
|
Part Detail:issue |
|
|
Part Number |
30 |
|
Extent(unit="pages") |
|
|
Start |
6173 |
|
End |
6182 |
|
Genre(marcgt) |
periodical |
| Identifier | qui93 |
| Location | |
|
URL |
http://www.opticsinfobase.org/abstract.cfm?URI=ao-32-30-6173 |
| Title Information | |
|
Title |
Optical properties of aggregates of small metal particles |
| Name:Personal | |
|
Name Part:given |
M. |
|
Name Part:family |
Quinten |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
U. |
|
Name Part:family |
Kreibig |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | Many-particle systems exhibit unique optical properties which strongly depend on the arrangement of the individual particles in the sample. Novel methods were applied to produce gold particle samples with their arrangements systematically varying from statistical disorder to densely packed particle aggregates of various mean sizes and shapes. Their optical extinction spectra vary from narrow bands in the VIS to broad multiple band structures extending into the IR, the peak structure proving to be more pronounced if the particles are larger. Numerical calculations of explicit extinction spectra were performed on corresponding prototypic particle aggregates taking both interior and exterior retardation effects into account. In special, for aggregates of 2 to 5 particles, respectively, definite attachments of measured extinction peaks to special aggregate types were achieved from these calculations and confirmed by TEM micrographs of the investigated samples. |
| Related Item:Host | |
|
Title Information |
|
|
Title |
Surf. Sci. |
|
Origin Information |
|
|
Issuance |
continuing |
|
Part |
|
|
Part Detail:volume |
|
|
Part Number |
172 |
|
Part Detail:issue |
|
|
Part Number |
3 |
|
Extent(unit="pages") |
|
|
Start |
557 |
|
End |
577 |
|
Genre(marcgt) |
periodical |
| Identifier | qui86 |
| Identifier:DOI | 10.1016/0039-6028(86)90501-7 |
| Location | |
|
URL |
http://www.sciencedirect.com/science/article/B6TVX-46VKVH1-1B/2/27d9564bd743ffd938dd4b172ce360dc |
|
URL |
http://dx.doi.org/10.1016/0039-6028(86)90501-7 |
| Title Information | |
|
Title |
Optical absorption spectra of pairs of small metal particles |
| Name:Personal | |
|
Name Part:given |
M. |
|
Name Part:family |
Quinten |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
U. |
|
Name Part:family |
Kreibig |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
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Name Part:given |
D. |
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Name Part:family |
Schönauer |
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Role |
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Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
L. |
|
Name Part:family |
Genzel |
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Role |
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|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | The influence of plasma resonance coupling in small Au particle pairs on their optical properties was calculated including retardation effects. The latter prove to be important for sizes above 15 nm. For pairs of smaller particles a Maxwell-Garnett formula is derived and absorption spectra are calculated explicitly. Comparison with optical absorption spectra measured on aggregated Au particle hydrosols, gives good agreement concerning the splitting up of the dipolar single-particle plasma resonance band. |
| Related Item:Host | |
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Title Information |
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Title |
Surf. Sci. |
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Origin Information |
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Issuance |
continuing |
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Part |
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Part Detail:volume |
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Part Number |
156 |
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Part Detail:issue |
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Part Number |
2 |
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Extent(unit="pages") |
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Start |
741 |
|
End |
750 |
|
Genre(marcgt) |
periodical |
| Identifier | qui85 |
| Identifier:DOI | 10.1016/0039-6028(85)90244-4 |
| Location | |
|
URL |
http://www.sciencedirect.com/science/article/B6TVX-46SXW79-1G2/2/ea3232716c916aa0405ef279fd619c0d |
|
URL |
http://dx.doi.org/10.1016/0039-6028(85)90244-4 |
| Title Information | |
|
Title |
A new radiation |
| Name:Personal | |
|
Name Part:given |
C. V. |
|
Name Part:family |
Raman |
|
Role |
|
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Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Related Item:Host | |
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Title Information |
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Title |
Ind. J. Phys. |
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Origin Information |
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Issuance |
continuing |
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Part |
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Part Detail:volume |
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Part Number |
2 |
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Extent(unit="pages") |
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Start |
387 |
|
End |
398 |
|
Genre(marcgt) |
periodical |
| Identifier | ram28 |
| Location | |
|
URL |
http://hdl.handle.net/2289/2135 |
| Title Information | |
|
Title |
Structural Properties of Oligonucleotide Monolayers on Gold Surfaces Probed by Fluorescence Investigations |
| Name:Personal | |
|
Name Part:given |
Ulrich |
|
Name Part:family |
Rant |
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Role |
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Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Kenji |
|
Name Part:family |
Arinaga |
|
Role |
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|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Shozo |
|
Name Part:family |
Fujita |
|
Role |
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Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Naoki |
|
Name Part:family |
Yokoyama |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Gerhard |
|
Name Part:family |
Abstreiter |
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Role |
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Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Marc |
|
Name Part:family |
Tornow |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | We present optical investigations on the conformation of oligonucleotide layers on Au surfaces. Our studies concentrate on the effect of varying surface coverage densities on the structural properties of layers of 12- and 24mer single-stranded DNA, tethered to the Au surface at one end while being labeled with a fluorescent marker at the opposing end. The distance-dependent energy transfer from the marker dye to the metal surface, which causes quenching of the observed fluorescence, is used to provide information on the orientation of the DNA strands relative to the surface. Variations in the oligonucleotide coverage density, as determined from electrochemical quantification, over 2 orders of magnitude are achieved by employing different preparation conditions. The observed enhancement in fluorescence intensity with increasing DNA coverage can be related to a model involving mutual steric interactions of oligonucleotides on the surface, as well as fluorescence quenching theory. Finally, the applicability of the presented concepts for investigations of heterogeneous monolayers is demonstrated by means of studying the coadsorption of mercaptohexanol onto DNA-modified Au surfaces. |
| Related Item:Host | |
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Title Information |
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Title |
Langmuir |
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Origin Information |
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Issuance |
continuing |
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Part |
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Part Detail:volume |
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Part Number |
20 |
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Part Detail:issue |
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|
Part Number |
23 |
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Extent(unit="pages") |
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|
Start |
10086 |
|
End |
10092 |
|
Genre(marcgt) |
periodical |
| Identifier | ran04 |
| Identifier:DOI | 10.1021/la0492963 |
| Location | |
|
URL |
http://dx.doi.org/10.1021/la0492963 |
| Title Information | |
|
Title |
ImageJ v1.35f |
| Name:Personal | |
|
Name Part:given |
W. S. |
|
Name Part:family |
Rasband |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre(bibtex) | misc |
| Origin Information | |
|
Date Issued(encoding="marc") |
2005 |
|
Issuance |
monographic |
| Physical Description | |
|
Form(marcform) |
|
| Note | National Institutes of Health, Bethesda, Maryland, USA |
| Identifier | imagej |
| Title Information | |
|
Title |
Molekulare Erkennung mit einzelnen Gold-Nanopartikeln |
| Name:Personal | |
|
Name Part:given |
Gunnar |
|
Name Part:family |
Raschke |
|
Role |
|
|
Role Term:Text |
author |
|
affiliation |
Ludwig-Maximilians-Universität München |
| Name:Corporate | |
|
displayForm |
Ludwig-Maximilians-Universität München |
|
Role |
|
|
Role Term:Text |
Originator |
| Type of Resource | text |
| Genre(bibtex) | phdthesis |
| Genre(marcgt) | theses |
| Genre(marcgt) | thesis |
| Origin Information | |
|
Publisher |
Ludwig-Maximilians-Universität München |
|
Date Issued(encoding="marc") |
2005 |
|
Issuance |
monographic |
| Physical Description | |
|
Form(marcform) |
|
| Identifier | phdras05 |
| Location | |
|
URL |
http://edoc.ub.uni-muenchen.de/4456/ |
| Title Information | |
|
Title |
Gold Nanoshells Improve Single Nanoparticle Molecular Sensors |
| Name:Personal | |
|
Name Part:given |
G. |
|
Name Part:family |
Raschke |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
S. |
|
Name Part:family |
Brogl |
|
Role |
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|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
A. S. |
|
Name Part:family |
Susha |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
A. L. |
|
Name Part:family |
Rogach |
|
Role |
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|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
T. A. |
|
Name Part:family |
Klar |
|
Role |
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|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
J. |
|
Name Part:family |
Feldmann |
|
Role |
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|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
B. |
|
Name Part:family |
Fieres |
|
Role |
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Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
N. |
|
Name Part:family |
Petkov |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
T. |
|
Name Part:family |
Bein |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
A. |
|
Name Part:family |
Nichtl |
|
Role |
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|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
K. |
|
Name Part:family |
Kürzinger |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | Abstract: Molecular sensors based on scattering spectroscopy of single gold nanoparticles can be improved three-fold by the use of gold nanoshells instead of solid gold nanoparticles. The particle plasmon resonance responds more sensitively to changes in the environment, the biological spectral window is accessible, and the scattering spectra show sharper resonances. In particular, we focus our discussion on the narrow homogeneous line width of only 180 meV. |
| Related Item:Host | |
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Title Information |
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Title |
Nano Lett. |
|
Origin Information |
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Issuance |
continuing |
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Part |
|
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Part Detail:volume |
|
|
Part Number |
4 |
|
Part Detail:issue |
|
|
Part Number |
10 |
|
Extent(unit="pages") |
|
|
Start |
1853 |
|
End |
1857 |
|
Identifier:ISSN |
1530-6984 |
|
Genre(marcgt) |
periodical |
| Identifier | ras04 |
| Identifier:DOI | 10.1021/nl049038q |
| Location | |
|
URL |
http://dx.doi.org/10.1021/nl049038q |
| Title Information | |
|
Title |
Biomolecular Recognition Based on Single Gold Nanoparticle Light Scattering |
| Name:Personal | |
|
Name Part:given |
G. |
|
Name Part:family |
Raschke |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
S. |
|
Name Part:family |
Kowarik |
|
Role |
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|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
T. |
|
Name Part:family |
Franzl |
|
Role |
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|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
C. |
|
Name Part:family |
Sönnichsen |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
T. A. |
|
Name Part:family |
Klar |
|
Role |
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|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
J. |
|
Name Part:family |
Feldmann |
|
Role |
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|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
A. |
|
Name Part:family |
Nichtl |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
K. |
|
Name Part:family |
Kürzinger |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | A method for biomolecular recognition is reported using light scattering of a single gold nanoparticle functionalized with biotin. Addition of streptavidin and subsequent specific binding events alter the dielectric environment of the nanoparticle, resulting in a spectral shift of the particle plasmon resonance. As we use single nanoparticles showing a homogeneous scattering spectrum, spectral shifts as small as 2 meV can be detected. |
| Related Item:Host | |
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Title Information |
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Title |
Nano Lett. |
|
Origin Information |
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|
Issuance |
continuing |
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Part |
|
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Part Detail:volume |
|
|
Part Number |
3 |
|
Part Detail:issue |
|
|
Part Number |
7 |
|
Extent(unit="pages") |
|
|
Start |
935 |
|
End |
938 |
|
Genre(marcgt) |
periodical |
| Identifier | ras03 |
| Identifier:DOI | 10.1021/nl034223+ |
| Location | |
|
URL |
http://dx.doi.org/10.1021/nl034223+ |
| Title Information | |
|
Title |
Laser-induced fluorescence quenching of tagged oligonucleotide probes by gold nanoparticles |
| Name:Personal | |
|
Name Part:given |
Paresh Chandra |
|
Name Part:family |
Raya |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Angela |
|
Name Part:family |
Fortnera |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Jelani |
|
Name Part:family |
Griffina |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Chan Kyu |
|
Name Part:family |
Kimb |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Jagdish P. |
|
Name Part:family |
Singhb |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Hongtao |
|
Name Part:family |
Yua |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | Laser induced fluorescence studies of single-strand (ss) DNA hybridization based on fluorescence quenching by gold nanoparticle through a distant dependent process has been carried out. Distance- and size-dependent optical absorption properties have been described using extended Mie calculations and compared with the experimental findings. The fluorescence of ss-DNA increases by a factor of 100 when it binds to a complimentary DNA while the addition of single-base mismatch DNA had no effect on the fluorescence efficiency. The mechanism of distant dependence fluorescence quenching has been discussed and our experimental results match reasonably well with the theoretical findings using fluorescence quenching model by Gersten and Nitzan. |
| Related Item:Host | |
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Title Information |
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Title |
Chem. Phys. Lett. |
|
Origin Information |
|
|
Issuance |
continuing |
|
Part |
|
|
Part Detail:volume |
|
|
Part Number |
414 |
|
Part Detail:issue |
|
|
Part Number |
4-6 |
|
Extent(unit="pages") |
|
|
Start |
259 |
|
End |
264 |
|
Genre(marcgt) |
periodical |
| Identifier | ray05 |
| Identifier:DOI | 10.1016/j.cplett.2005.08.069 |
| Location | |
|
URL |
http://dx.doi.org/10.1016/j.cplett.2005.08.069 |
| Title Information | |
|
Title |
Electronic Polarizabilities of Very Small Metallic Particles and Thin Films |
| Name:Personal | |
|
Name Part:given |
M. J. |
|
Name Part:family |
Rice |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
W. R. |
|
Name Part:family |
Schneider |
|
Role |
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|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
S. |
|
Name Part:family |
Strässler |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | This paper presents calculations of the electronic polarizabilities of very small metallic particles and of very thin metallic films. The theoretical model we employ for the metallic particle is simply that of N free electrons trapped by an infinitely deep spherical potential well. The model used for the thin-film problem is that of a system of free electrons constrained to move in the volume enclosed by two infinite parallel planes. Linear-response theory and Poisson's equation are used to calculate the electronic polarizability in terms of the electronic density-density response function. The numerical results provide an idea of just how small, or how thin, a small metallic particle, or thin metallic film, has to be for it to begin to lose its bulk property of being able to screen an externally applied electric field. |
| Related Item:Host | |
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Title Information |
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Title |
Phys. Rev. B |
|
Origin Information |
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Issuance |
continuing |
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Part |
|
|
Part Detail:volume |
|
|
Part Number |
8 |
|
Part Detail:issue |
|
|
Part Number |
2 |
|
Extent(unit="pages") |
|
|
Start |
474 |
|
End |
482 |
|
Genre(marcgt) |
periodical |
| Identifier | ric73 |
| Identifier:DOI | 10.1103/PhysRevB.8.474 |
| Location | |
|
URL |
http://link.aps.org/abstract/PRB/v8/p474 |
|
URL |
http://dx.doi.org/10.1103/PhysRevB.8.474 |
| Title Information | |
|
Title |
Reversible Unfolding of Individual Titin Immunoglobulin Domains by AFM |
| Name:Personal | |
|
Name Part:given |
Matthias |
|
Name Part:family |
Rief |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Mathias |
|
Name Part:family |
Gautel |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Filipp |
|
Name Part:family |
Oesterhelt |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Julio M. |
|
Name Part:family |
Fernandez |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Hermann E. |
|
Name Part:family |
Gaub |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |
| Genre | journal article |
| Genre(bibtex) | article |
| Origin Information | |
|
Issuance |
monographic |
| Abstract | Single-molecule atomic force microscopy (AFM) was used to investigate the mechanical properties of titin, the giant sarcomeric protein of striated muscle. Individual titin molecules were repeatedly stretched, and the applied force was recorded as a function of the elongation. At large extensions, the restoring force exhibited a sawtoothlike pattern, with a periodicity that varied between 25 and 28 nanometers. Measurements of recombinant titin immunoglobulin segments of two different lengths exhibited the same pattern and allowed attribution of the discontinuities to the unfolding of individual immunoglobulin domains. The forces required to unfold individual domains ranged from 150 to 300 piconewtons and depended on the pulling speed. Upon relaxation, refolding of immunoglobulin domains was observed. |
| Related Item:Host | |
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Title Information |
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|
Title |
Science |
|
Origin Information |
|
|
Issuance |
continuing |
|
Part |
|
|
Part Detail:volume |
|
|
Part Number |
276 |
|
Part Detail:issue |
|
|
Part Number |
5315 |
|
Extent(unit="pages") |
|
|
Start |
1109 |
|
End |
1112 |
|
Genre(marcgt) |
periodical |
| Identifier | rie97 |
| Identifier:DOI | 10.1126/science.276.5315.1109 |
| Location | |
|
URL |
http://www.sciencemag.org/cgi/content/abstract/276/5315/1109 |
|
URL |
http://dx.doi.org/10.1126/science.276.5315.1109 |
| Title Information | |
|
Title |
Electrophoresis gel media: the state of the art |
| Name:Personal | |
|
Name Part:given |
Pier Giorgio |
|
Name Part:family |
Righetti |
|
Role |
|
|
Role Term:Text |
author |
| Name:Personal | |
|
Name Part:given |
Cecilia |
|
Name Part:family |
Gelfi |
|
Role |
|
|
Role Term:Text |
author |
| Type of Resource | text |