pH-Triggered SERS via Modulated Plasmonic Coupling in Individual Bimetallic Nanocobs

被引：40

作者：

Gupta, Maneesh K. ^{[1
]}

Chang, Sehoon ^{[1
]}

Singamaneni, Srikanth ^{[1
]}

Drummy, Lawrence F. ^{[2
]}

Gunawidjaja, Ray ^{[1
]}

Naik, Rajesh R. ^{[2
]}

Tsukruk, Vladimir V. ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA

[2] USAF, Res Lab, Mat & Mfg Directorate, Wright Patterson AFB, OH 45433 USA

来源：

SMALL | 2011年 / 7卷 / 09期

基金：

美国国家科学基金会;

关键词：

ENHANCED RAMAN-SCATTERING; GOLD NANOPARTICLES; NANOSTRUCTURES; SPECTROSCOPY; RESONANCES; NANOWIRES; SURFACES;

D O I：

10.1002/smll.201002169

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Silver nanowires functionalized with gold nanoparticles using a polyacrylic acid linker exhibit pH-modulated optical properties, including a shift in localized surface plasmon resonance, and triggered surface-enhanced Raman scattering (SERS) effects. The tunable optical properties are exhibited as a result of changes in particle coupling caused by the swelling response of polyacrylic acid. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：1192 / 1198

页数：7

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