Stable fluorescent gold nanoparticles for detection of Cu2+ with good sensitivity and selectivity

Yongming Guo; Zhuo Wang; Huawu Shao; Xingyu Jiang

doi:10.1039/C1AN15877E

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Stable fluorescent gold nanoparticles for detection of Cu²⁺ with good sensitivity and selectivity†

Yongming Guo,^abc Zhuo Wang,*^b Huawu Shao*^a and Xingyu Jiang*^b

Author affiliations

* Corresponding authors

^a Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, Sichuan, China
E-mail: shaohw@cib.ac.cn
Fax: +86 28-85222753
Tel: +86 28-85356511

^b National Center for Nanoscience and Technology, Beijing, China
E-mail: wangz@nanoctr.cn, xingyujiang@nanoctr.cn
Fax: +86 10-82545631
Tel: +86 10-82545575

^c Graduate University of Chinese Academy of Sciences, Beijing, China

Abstract

A simple and one-pot method for the synthesis of water-soluble, red-emitting, highly fluorescent gold nanoparticles has been reported using 11-mercaptoundecanoic acid (11-MUA) as the protecting group. We found that the fluorescent gold nanoparticles could selectively detect copper ions in aqueous solution, with a limit of detection of about 87 nM.

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Article information

DOI: https://doi.org/10.1039/C1AN15877E
Article type: Communication
Submitted: 20 Sep 2011
Accepted: 16 Oct 2011
First published: 03 Nov 2011

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Analyst, 2012,137, 301-304

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Stable fluorescent gold nanoparticles for detection of Cu²⁺ with good sensitivity and selectivity

Y. Guo, Z. Wang, H. Shao and X. Jiang, Analyst, 2012, 137, 301 DOI: 10.1039/C1AN15877E

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