Study of the Interaction between Gold Nanoparticles and Rose Bengal Fluorophores with Silica Spacers by Time-Resolved Fluorescence Spectroscopy
Тип публикации: Journal Article
Дата публикации: 2015-11-13
scimago Q1
wos Q3
БС1
SJR: 0.914
CiteScore: 6.2
Impact factor: 3.2
ISSN: 19327447, 19327455
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Physical and Theoretical Chemistry
General Energy
Краткое описание
The interaction between gold nanoparticles (GNPs) with silica shell as spacer, Au@SiO2 NPs, and fluorophore rose bengal (RB) is studied using time-resolved spectroscopy. Varied sizes of GNPs with controlled thickness of silica shell were synthesized to investigate the effects on metal-enhanced fluorescence. Fluorophore RB covalently connected to prefunctionlized silica surface has spectral overlap with the plasmon resonance of the gold nanoparticle. The enhancement factor for fluorescence displaying a maximum at spacer separation ∼10 nm is 2.4, 3.8, 4.6, and 5.5 for diameters 45, 65, 80, and 100 nm Au@SiO2 NPs, respectively. Biexponential decay of emission is observed for small thicknesses of spacer, indicating multiple pathways for relaxation of the excited states. Both time constants τ1 and τ2 are consistently increased with increased separation of the silica spacer. The fast component has the most amplitude at short spacer thicknesses and large NP sizes. The biexponential decay is explained by the back...
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Lin H. H., Chen I. Study of the Interaction between Gold Nanoparticles and Rose Bengal Fluorophores with Silica Spacers by Time-Resolved Fluorescence Spectroscopy // Journal of Physical Chemistry C. 2015. Vol. 119. No. 47. pp. 26663-26671.
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Lin H. H., Chen I. Study of the Interaction between Gold Nanoparticles and Rose Bengal Fluorophores with Silica Spacers by Time-Resolved Fluorescence Spectroscopy // Journal of Physical Chemistry C. 2015. Vol. 119. No. 47. pp. 26663-26671.
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TY - JOUR
DO - 10.1021/acs.jpcc.5b08477
UR - https://doi.org/10.1021/acs.jpcc.5b08477
TI - Study of the Interaction between Gold Nanoparticles and Rose Bengal Fluorophores with Silica Spacers by Time-Resolved Fluorescence Spectroscopy
T2 - Journal of Physical Chemistry C
AU - Lin, Hsing Hui
AU - Chen, I‐Chia
PY - 2015
DA - 2015/11/13
PB - American Chemical Society (ACS)
SP - 26663-26671
IS - 47
VL - 119
SN - 1932-7447
SN - 1932-7455
ER -
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@article{2015_Lin,
author = {Hsing Hui Lin and I‐Chia Chen},
title = {Study of the Interaction between Gold Nanoparticles and Rose Bengal Fluorophores with Silica Spacers by Time-Resolved Fluorescence Spectroscopy},
journal = {Journal of Physical Chemistry C},
year = {2015},
volume = {119},
publisher = {American Chemical Society (ACS)},
month = {nov},
url = {https://doi.org/10.1021/acs.jpcc.5b08477},
number = {47},
pages = {26663--26671},
doi = {10.1021/acs.jpcc.5b08477}
}
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Lin, Hsing Hui, and I‐Chia Chen. “Study of the Interaction between Gold Nanoparticles and Rose Bengal Fluorophores with Silica Spacers by Time-Resolved Fluorescence Spectroscopy.” Journal of Physical Chemistry C, vol. 119, no. 47, Nov. 2015, pp. 26663-26671. https://doi.org/10.1021/acs.jpcc.5b08477.