Issue 33, 2013
From the journal:

RSC Advances

Synthesis of silver nanoparticle-coated poly(styrene-co-sulfonic acid) hybrid materials and their application in surface-enhanced Raman scattering (SERS) tags

Nianchun Zhang,a   Xiang Yu,b   Jianqiang Hu,c   Feng Xuea  and  Enyong Ding*a  

* Corresponding authors

a Department of Polymer Materials Science and Engineering, College of Material Science and Engineering, South China University of Technology, Guangzhou 510641, PR China
E-mail: eyding@scut.edu.cn
Fax: +86 20 87111290
Tel: +86 20 87111290

b Analytical and testing center, Jinan University, Guangzhou 510632, PR China

c Department of Applied Chemistry, College of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, PR China

Abstract

A straightforward, mild and green chemistry process had been developed to synthesize well-defined spherical Ag/PS (polystyrene) hybrid materials by using nontoxic L-ascorbic acid as both reducing agent and capping agent. Negatively charged –SO3− could act as a linker between Ag+ ions (Ag nanoparticles) and polystyrene beads. The positively charged PS beads were also prepared by a grafting method, and silver nanoparticles deposition on positively charged and uncharged PS beads were also studied. The Ag nanoparticles were coated on the poly(styrene-co-sulfonic acid) beads via an in situ reduction method. The morphologies of the synthesis samples were investigated by field emission-scanning electron microscopy (FE-SEM), (high resolution) transmission electron microscopy (TEM, HRTEM), X-ray diffraction (XRD), and selected-area electron diffraction (SAED). The results indicated that the reducing agent and electric charge had an important influence on the deposition of silver nanoparticles. As a potential application, the Ag/PS hybrid materials were embedded with the reporter molecule methylene blue (MB), and the signal intensity of the SERS (surface-enhanced Raman scattering) tags could be enormously increased. So, the Ag/PS hybrid SERS tags can provide unique signal averaging for potentially quantitative analysis, which were used for SERS substrate design and SERS bioassays analysis. The facile and green chemistry preparation method might also provide a development direction to fabricate different nanometal/PS composites by the simple procedure.

Graphical abstract: Synthesis of silver nanoparticle-coated poly(styrene-co-sulfonic acid) hybrid materials and their application in surface-enhanced Raman scattering (SERS) tags

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Article information

DOI
https://doi.org/10.1039/C3RA40888D
Article type
Paper
Submitted
21 Feb 2013
Accepted
10 May 2013
First published
10 May 2013

RSC Adv., 2013,3, 13740-13747

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Synthesis of silver nanoparticle-coated poly(styrene-co-sulfonic acid) hybrid materials and their application in surface-enhanced Raman scattering (SERS) tags

N. Zhang, X. Yu, J. Hu, F. Xue and E. Ding, RSC Adv., 2013, 3, 13740 DOI: 10.1039/C3RA40888D

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