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Title: Multishell Au/Ag/SiO2 nanorods with tunable optical properties as single particle orientation and rotational tracking probes

Abstract

In this study, three-layer core–shell plasmonic nanorods (Au/Ag/SiO2–NRs), consisting of a gold nanorod core, a thin silver shell, and a thin silica layer, were synthesized and used as optical imaging probes under a differential interference contrast microscope for single particle orientation and rotational tracking. The localized surface plasmon resonance modes were enhanced upon the addition of the silver shell, and the anisotropic optical properties of gold nanorods were maintained. The silica coating enables surface functionalization with silane coupling agents and provides enhanced stability and biocompatibility. Taking advantage of the longitudinal LSPR enhancement, the orientation and rotational information of the hybrid nanorods on synthetic lipid bilayers and on live cell membranes were obtained with millisecond temporal resolution using a scientific complementary metal-oxide-semiconductor camera. The results demonstrate that the as-synthesized hybrid nanorods are promising imaging probes with improved sensitivity and good biocompatibility for single plasmonic particle tracking experiments in biological systems.

Authors:
 [1];  [1];  [1];  [1]
+ Show Author Affiliations
  1. Iowa State Univ., Ames, IA (United States)
Publication Date:
Research Org.:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1227435
Report Number(s):
IS-J-8624
Journal ID: ISSN 0003-2700
Grant/Contract Number:  
AC02-07CH11358
Resource Type:
Accepted Manuscript
Journal Name:
Analytical Chemistry
Additional Journal Information:
Journal Volume: 87; Journal Issue: 8; Journal ID: ISSN 0003-2700
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Chen, Kuangcai, Lin, Chia -Cheng, Vela, Javier, and Fang, Ning. Multishell Au/Ag/SiO2 nanorods with tunable optical properties as single particle orientation and rotational tracking probes. United States: N. p., 2015. Web. doi:10.1021/acs.analchem.5b00604.
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Chen, Kuangcai, Lin, Chia -Cheng, Vela, Javier, & Fang, Ning. Multishell Au/Ag/SiO2 nanorods with tunable optical properties as single particle orientation and rotational tracking probes. United States. https://doi.org/10.1021/acs.analchem.5b00604
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Chen, Kuangcai, Lin, Chia -Cheng, Vela, Javier, and Fang, Ning. Tue . "Multishell Au/Ag/SiO2 nanorods with tunable optical properties as single particle orientation and rotational tracking probes". United States. https://doi.org/10.1021/acs.analchem.5b00604. https://www.osti.gov/servlets/purl/1227435.
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@article{osti_1227435,
title = {Multishell Au/Ag/SiO2 nanorods with tunable optical properties as single particle orientation and rotational tracking probes},
author = {Chen, Kuangcai and Lin, Chia -Cheng and Vela, Javier and Fang, Ning},
abstractNote = {In this study, three-layer core–shell plasmonic nanorods (Au/Ag/SiO2–NRs), consisting of a gold nanorod core, a thin silver shell, and a thin silica layer, were synthesized and used as optical imaging probes under a differential interference contrast microscope for single particle orientation and rotational tracking. The localized surface plasmon resonance modes were enhanced upon the addition of the silver shell, and the anisotropic optical properties of gold nanorods were maintained. The silica coating enables surface functionalization with silane coupling agents and provides enhanced stability and biocompatibility. Taking advantage of the longitudinal LSPR enhancement, the orientation and rotational information of the hybrid nanorods on synthetic lipid bilayers and on live cell membranes were obtained with millisecond temporal resolution using a scientific complementary metal-oxide-semiconductor camera. The results demonstrate that the as-synthesized hybrid nanorods are promising imaging probes with improved sensitivity and good biocompatibility for single plasmonic particle tracking experiments in biological systems.},
doi = {10.1021/acs.analchem.5b00604},
journal = {Analytical Chemistry},
number = 8,
volume = 87,
place = {United States},
year = {Tue Apr 07 00:00:00 EDT 2015},
month = {Tue Apr 07 00:00:00 EDT 2015}
}
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https://doi.org/10.1021/acs.analchem.5b00604
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    Works referencing / citing this record:

    Growth of metal–semiconductor core–multishell nanorods with optimized field confinement and nonlinear enhancement
    journal, January 2016

    • Nan, Fan; Xie, Fang-Ming; Liang, Shan
    • Nanoscale, Vol. 8, Issue 23
    • DOI: 10.1039/c5nr09151a
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