Au@pNIPAM Colloids as Molecular Traps for Surface-Enhanced, Spectroscopic, Ultra-Sensitive Analysis

被引：271

作者：

Alvarez-Puebla, Ramon A. ^{[1
,2
]}

Contreras-Caceres, Rafael ^{[3
]}

Pastoriza-Santos, Isabel ^{[1
,2
]}

Perez-Juste, Jorge ^{[1
,2
]}

Liz-Marzan, Luis M. ^{[1
,2
]}

机构：

[1] Univ Vigo, Dept Quim Fis, Vigo 36310, Spain

[2] Univ Vigo, Uniclad Asociada CSIC, Vigo 36310, Spain

[3] Univ Almeria, Dept Fis Aplicada, Almeria, Spain

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2009年 / 48卷 / 01期

关键词：

colloids; gold; nanoparticles; sensing; SERS; POLYCYCLIC AROMATIC-HYDROCARBONS; ULTRASENSITIVE CHEMICAL-ANALYSIS; RAMAN-SCATTERING; GOLD NANOPARTICLES; AG NANOPARTICLES; METAL NANOPARTICLES; OPTICAL-PROPERTIES; PHASE-TRANSITION; SINGLE-MOLECULE; SERS DETECTION;

D O I：

10.1002/anie.200804059

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Caught in a trap: Colloids of gold nanoparticles coated with a thermally responsive poly-(N-isopropylacrylamide) (pNIPAM) microgel can trap molecules in different ways as a function of temperature (see scheme). The porous pNIPAM shells prevent electromagnetic coupling between metal particles, thus providing highly reproducible surface-enhanced Raman scattering (SERS) signals and intensity. (Figure Presented). © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：138 / 143

页数：6

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