Issue 17, 2012
From the journal:

Analyst

Functionalized gold nanoparticles as nanosensor for sensitive and selective detection of silver ions and silver nanoparticles by surface-enhanced Raman scattering†

Enzhong Tan,ab   Penggang Yin,*a   Xiufeng Lang,a   Xiao Wang,a   Tingting Youa  and  Lin Guo*a  

* Corresponding authors

a Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing 100191, PR China
E-mail: pgyin@buaa.edu.cn, guolin@buaa.edu.cn

b Department of Mathematics and Physics, Beijing Institute of Technology Petrochemical, Beijing, PR China

Abstract

We have developed a surface-enhanced Raman scattering (SERS) nanosensor firstly for Ag ions and Ag nanoparticles detection based on 2-mercaptoisonicotinic acid (2MNA)-functionalized Au nanoparticles. Ag+ can coordinate with 2MNA resutling in a variation of its SERS spectrum, which is used as a criterion to determine Ag+ in a solution. This sensor exhibits a detection limit no more than 25 nM and has a high selectivity against other metal ions. More importantly, it can be directly applied in real sample detection.

Graphical abstract: Functionalized gold nanoparticles as nanosensor for sensitive and selective detection of silver ions and silver nanoparticles by surface-enhanced Raman scattering

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Article information

DOI
https://doi.org/10.1039/C2AN35670H
Article type
Communication
Submitted
21 May 2012
Accepted
14 Jun 2012
First published
18 Jun 2012

Analyst, 2012,137, 3925-3928

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Functionalized gold nanoparticles as nanosensor for sensitive and selective detection of silver ions and silver nanoparticles by surface-enhanced Raman scattering

E. Tan, P. Yin, X. Lang, X. Wang, T. You and L. Guo, Analyst, 2012, 137, 3925 DOI: 10.1039/C2AN35670H

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