Differentiating surface and bulk interactions using localized surface plasmon resonances of gold nanorods

被引：16
|
作者：
Nehru, Neha [1 ]
Donev, Eugenii U.
Huda, Gazi M.
Yu, Linliang [1 ]
Wei, Yinan [1 ]
Hastings, J. Todd
机构：
[1] Univ Kentucky, Dept Chem, Lexington, KY 40506 USA
来源：
OPTICS EXPRESS | 2012年 / 20卷 / 07期
基金：
美国国家科学基金会;
关键词：
LONG-RANGE; METAL NANOPARTICLES; SHAPE; BIOSENSORS; SENSORS;
D O I：
10.1364/OE.20.006905
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrate a novel localized surface-plasmon resonance sensor that can distinguish surface binding interactions from interfering bulk effects. This is accomplished by utilizing the longitudinal and transverse plasmon modes of gold nanorods. We have investigated, both numerically and experimentally, the effect of change in background refractive index and surface binding on the two resonances of a gold nanorod on an indium tin oxide coated glass substrate. (C) 2012 Optical Society of America
引用
收藏
页码：6905 / 6914
页数：10
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