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Fluorescence Quenching of Alpha-Fetoprotein by Gold Nanoparticles: Effect of Dielectric Shell on Non-Radiative Decay
Fluorescence quenching spectrometry was applied to study the interactions between gold colloidal nanoparticles and alpha-fetoprotein (AFP). Experimental results show that the gold nanoparticles can quench the fluorescence emission of adsorbed AFP effectively. Furthermore, the intensity of fluorescen...
Autores principales: | , , , , |
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Formato: | Texto |
Lenguaje: | English |
Publicado: |
Springer
2010
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2920401/ https://www.ncbi.nlm.nih.gov/pubmed/20730117 http://dx.doi.org/10.1007/s11671-010-9668-0 |
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author | Zhu, Jian Li, Jian-jun Wang, A-qing Chen, Yu Zhao, Jun-wu |
author_facet | Zhu, Jian Li, Jian-jun Wang, A-qing Chen, Yu Zhao, Jun-wu |
author_sort | Zhu, Jian |
collection | PubMed |
description | Fluorescence quenching spectrometry was applied to study the interactions between gold colloidal nanoparticles and alpha-fetoprotein (AFP). Experimental results show that the gold nanoparticles can quench the fluorescence emission of adsorbed AFP effectively. Furthermore, the intensity of fluorescence emission peak decreases monotonously with the increasing gold nanoparticles content. A mechanism based on surface plasmon resonance–induced non-radiative decay was investigated to illuminate the effect of a dielectric shell on the fluorescence quenching ability of gold nanoparticles. The calculation results show that the increasing dielectric shell thickness may improve the monochromaticity of fluorescence quenching. However, high energy transfer efficiency can be obtained within a wide wavelength band by coating a thinner dielectric shell. |
format | Text |
id | pubmed-2920401 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2010 |
publisher | Springer |
record_format | MEDLINE/PubMed |
spelling | pubmed-29204012010-08-20 Fluorescence Quenching of Alpha-Fetoprotein by Gold Nanoparticles: Effect of Dielectric Shell on Non-Radiative Decay Zhu, Jian Li, Jian-jun Wang, A-qing Chen, Yu Zhao, Jun-wu Nanoscale Res Lett Nano Express Fluorescence quenching spectrometry was applied to study the interactions between gold colloidal nanoparticles and alpha-fetoprotein (AFP). Experimental results show that the gold nanoparticles can quench the fluorescence emission of adsorbed AFP effectively. Furthermore, the intensity of fluorescence emission peak decreases monotonously with the increasing gold nanoparticles content. A mechanism based on surface plasmon resonance–induced non-radiative decay was investigated to illuminate the effect of a dielectric shell on the fluorescence quenching ability of gold nanoparticles. The calculation results show that the increasing dielectric shell thickness may improve the monochromaticity of fluorescence quenching. However, high energy transfer efficiency can be obtained within a wide wavelength band by coating a thinner dielectric shell. Springer 2010-06-15 /pmc/articles/PMC2920401/ /pubmed/20730117 http://dx.doi.org/10.1007/s11671-010-9668-0 Text en Copyright © 2010 The Author(s) https://creativecommons.org/licenses/by-nc/4.0/ This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited. |
spellingShingle | Nano Express Zhu, Jian Li, Jian-jun Wang, A-qing Chen, Yu Zhao, Jun-wu Fluorescence Quenching of Alpha-Fetoprotein by Gold Nanoparticles: Effect of Dielectric Shell on Non-Radiative Decay |
title | Fluorescence Quenching of Alpha-Fetoprotein by Gold Nanoparticles: Effect of Dielectric Shell on Non-Radiative Decay |
title_full | Fluorescence Quenching of Alpha-Fetoprotein by Gold Nanoparticles: Effect of Dielectric Shell on Non-Radiative Decay |
title_fullStr | Fluorescence Quenching of Alpha-Fetoprotein by Gold Nanoparticles: Effect of Dielectric Shell on Non-Radiative Decay |
title_full_unstemmed | Fluorescence Quenching of Alpha-Fetoprotein by Gold Nanoparticles: Effect of Dielectric Shell on Non-Radiative Decay |
title_short | Fluorescence Quenching of Alpha-Fetoprotein by Gold Nanoparticles: Effect of Dielectric Shell on Non-Radiative Decay |
title_sort | fluorescence quenching of alpha-fetoprotein by gold nanoparticles: effect of dielectric shell on non-radiative decay |
topic | Nano Express |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2920401/ https://www.ncbi.nlm.nih.gov/pubmed/20730117 http://dx.doi.org/10.1007/s11671-010-9668-0 |
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