Tip-Functionalized Au@Ag Nanorods as Ultrabright Surface-Enhanced Raman Scattering Probes for Bioimaging in Off-Resonance Mode
Publication type: Journal Article
Publication date: 2018-07-19
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
Surface-enhanced Raman scattering (SERS) performance of Au nanorods (AuNRs) can be enhanced by the tip adsorption of Raman molecules (RMs) through anisotropic polymer stabilization or through the embedding of RMs between AuNR cores and Ag shells of AuNR@RM@Ag composite particles. We propose a new strategy to design ultrabright SERS probes composed of high-aspect-ratio AuNRs with anisotropic Ag coatings, with preferred adsorption of RMs to open AuNR tips. Specifically, for 4-nitrobenzenethiol (NBT) concentrations above a threshold value c > ctr, the fabricated Au@NBT@Ag particles had NBT-functionalized open Au tips, as well as anisotropic Ag shells grown on the AuNR sides. The SERS response of these probes with an optimal Ag shell was highest in the off-resonance mode, when the excitation wavelength was far from the plasmon resonance of the Au@NBT@Ag composites. Growing the Ag shell further to completely cover the AuNRs decreased the SERS enhancement. For biocompatibility and stability, the probes were add...
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32
Total citations:
32
Citations from 2024:
2
(6%)
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GOST
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Khlebtsov B. et al. Tip-Functionalized Au@Ag Nanorods as Ultrabright Surface-Enhanced Raman Scattering Probes for Bioimaging in Off-Resonance Mode // Journal of Physical Chemistry C. 2018. Vol. 122. No. 31. pp. 17983-17993.
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Khlebtsov B., Bratashov D., Khlebtsov N. Tip-Functionalized Au@Ag Nanorods as Ultrabright Surface-Enhanced Raman Scattering Probes for Bioimaging in Off-Resonance Mode // Journal of Physical Chemistry C. 2018. Vol. 122. No. 31. pp. 17983-17993.
Cite this
RIS
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TY - JOUR
DO - 10.1021/acs.jpcc.8b04772
UR - https://doi.org/10.1021/acs.jpcc.8b04772
TI - Tip-Functionalized Au@Ag Nanorods as Ultrabright Surface-Enhanced Raman Scattering Probes for Bioimaging in Off-Resonance Mode
T2 - Journal of Physical Chemistry C
AU - Khlebtsov, Boris
AU - Bratashov, Daniil
AU - Khlebtsov, Nikolai
PY - 2018
DA - 2018/07/19
PB - American Chemical Society (ACS)
SP - 17983-17993
IS - 31
VL - 122
SN - 1932-7447
SN - 1932-7455
ER -
Cite this
BibTex (up to 50 authors)
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@article{2018_Khlebtsov,
author = {Boris Khlebtsov and Daniil Bratashov and Nikolai Khlebtsov},
title = {Tip-Functionalized Au@Ag Nanorods as Ultrabright Surface-Enhanced Raman Scattering Probes for Bioimaging in Off-Resonance Mode},
journal = {Journal of Physical Chemistry C},
year = {2018},
volume = {122},
publisher = {American Chemical Society (ACS)},
month = {jul},
url = {https://doi.org/10.1021/acs.jpcc.8b04772},
number = {31},
pages = {17983--17993},
doi = {10.1021/acs.jpcc.8b04772}
}
Cite this
MLA
Copy
Khlebtsov, Boris, et al. “Tip-Functionalized Au@Ag Nanorods as Ultrabright Surface-Enhanced Raman Scattering Probes for Bioimaging in Off-Resonance Mode.” Journal of Physical Chemistry C, vol. 122, no. 31, Jul. 2018, pp. 17983-17993. https://doi.org/10.1021/acs.jpcc.8b04772.
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