Issue 20, 2011

Siloxanesurfactant induced self-assembly of gold nanoparticles and their application to SERS

Abstract

A siloxane surfactant was used for the mild synthesis and simultaneous 1D assembly of gold nanoparticles. The length of the gold nanochains could be tuned by facile adjustment of the surfactant concentration. The multiple interactions between the siloxane surfactant and gold nanoparticles made the non-uniform spatial distribution of stabilizers at the nanoparticle surfaces and then led to the 1D assembly. Transmission electron microscopy (TEM) and UV-vis spectroscopy have been employed for characterizing the nanochains. The effect of ionic strength in the spontaneous linear assembly of gold nanoparticles was investigated to further elucidate the assembly of mechanism. These gold nanochains were shown to yield a large SERS enhancement for Rhodamine 6G.

Graphical abstract: Siloxane surfactant induced self-assembly of gold nanoparticles and their application to SERS

Supplementary files

Article information

Article type
Paper
Submitted
12 Jun 2011
Accepted
15 Jul 2011
First published
17 Aug 2011

CrystEngComm, 2011,13, 6179-6184

Siloxane surfactant induced self-assembly of gold nanoparticles and their application to SERS

H. Jia, X. Bai, N. Li, L. Yu and L. Zheng, CrystEngComm, 2011, 13, 6179 DOI: 10.1039/C1CE05715D

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