Enhanced Fluorescence of a Dye on DNA-Assembled Gold Nanodimers Discriminated by Lifetime Correlation Spectroscopy
Publication type: Journal Article
Publication date: 2018-04-30
scimago Q1
wos Q3
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
Abstract
The surface plasmon modes of metal nanoparticles provide a way to efficiently enhance the excitation and emission from a fluorescent dye. We have employed DNA-directed assembly to prepare dimers of gold nanoparticles and used their longitudinally coupled plasmon mode to enhance the fluorescence emission of an organic red-emitting dye, Atto-655. The plasmon-enhanced fluorescence of this dye using dimers of 80 nm particles was measured at the single-molecule detection level. The top enhancement factors were above 1000-fold in 71% of the dimers within a total of 32 dimers measured, and in some cases, they reached almost 4000-fold, in good agreement with model simulations. Additionally, fluorescence lifetime correlation analysis enabled the separation of enhanced from nonenhanced emission simultaneously collected in our confocal detection volume. This approach allowed us to recover a short relaxation component exclusive to enhanced emission that is attributed to the interaction of the dye with DNA in the inte...
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17
Total citations:
17
Citations from 2024:
4
(23.52%)
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Paulo P. et al. Enhanced Fluorescence of a Dye on DNA-Assembled Gold Nanodimers Discriminated by Lifetime Correlation Spectroscopy // Journal of Physical Chemistry C. 2018. Vol. 122. No. 20. pp. 10971-10980.
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Paulo P., Botequim D., Jóskowiak A., Martins S., Prazeres D. M. F., Zijlstra P., Costa S. F. Enhanced Fluorescence of a Dye on DNA-Assembled Gold Nanodimers Discriminated by Lifetime Correlation Spectroscopy // Journal of Physical Chemistry C. 2018. Vol. 122. No. 20. pp. 10971-10980.
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RIS
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TY - JOUR
DO - 10.1021/acs.jpcc.7b12622
UR - https://doi.org/10.1021/acs.jpcc.7b12622
TI - Enhanced Fluorescence of a Dye on DNA-Assembled Gold Nanodimers Discriminated by Lifetime Correlation Spectroscopy
T2 - Journal of Physical Chemistry C
AU - Paulo, Pedro
AU - Botequim, D.
AU - Jóskowiak, Agnieszka
AU - Martins, Sofia
AU - Prazeres, Duarte M F
AU - Zijlstra, Peter
AU - Costa, Sílvia F.
PY - 2018
DA - 2018/04/30
PB - American Chemical Society (ACS)
SP - 10971-10980
IS - 20
VL - 122
SN - 1932-7447
SN - 1932-7455
ER -
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BibTex (up to 50 authors)
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@article{2018_Paulo,
author = {Pedro Paulo and D. Botequim and Agnieszka Jóskowiak and Sofia Martins and Duarte M F Prazeres and Peter Zijlstra and Sílvia F. Costa},
title = {Enhanced Fluorescence of a Dye on DNA-Assembled Gold Nanodimers Discriminated by Lifetime Correlation Spectroscopy},
journal = {Journal of Physical Chemistry C},
year = {2018},
volume = {122},
publisher = {American Chemical Society (ACS)},
month = {apr},
url = {https://doi.org/10.1021/acs.jpcc.7b12622},
number = {20},
pages = {10971--10980},
doi = {10.1021/acs.jpcc.7b12622}
}
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MLA
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Paulo, Pedro, et al. “Enhanced Fluorescence of a Dye on DNA-Assembled Gold Nanodimers Discriminated by Lifetime Correlation Spectroscopy.” Journal of Physical Chemistry C, vol. 122, no. 20, Apr. 2018, pp. 10971-10980. https://doi.org/10.1021/acs.jpcc.7b12622.