A fishnet electrochemical Hg2+ sensing strategy based on gold nanoparticle-bioconjugate and thymine–Hg2+–thymine coordination chemistry

Xuemei Tang; Huixiang Liu; Binghua Zou; Danbi Tian; He Huang

doi:10.1039/C1AN15908A

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A fishnet electrochemical Hg²⁺ sensing strategy based on gold nanoparticle-bioconjugate and thymine–Hg²⁺–thymine coordination chemistry†

Xuemei Tang,^a Huixiang Liu,^a Binghua Zou,^a Danbi Tian*^a and He Huang*^b

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* Corresponding authors

^a College of Science, Nanjing University of Technology, Nanjing, PR China
E-mail: danbi@njut.edu.cn
Fax: +86 25 83587443
Tel: +86 25 83587428

^b State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology, Nanjing, PR China
E-mail: huangh@njut.edu.cn

Abstract

A novel electrochemical biosensing strategy based on a three-dimensional fishnet of DNA-linked nanoparticle supramolecular structure triggered by the analyst for detection of Hg²⁺ has been designed. The detection limit is 7.38 pM and the sensor's selectivity and facility have been significantly improved.

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Article information

DOI: https://doi.org/10.1039/C1AN15908A
Article type: Communication
Submitted: 30 Sep 2011
Accepted: 02 Nov 2011
First published: 14 Nov 2011

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Analyst, 2012,137, 309-311

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A fishnet electrochemical Hg²⁺ sensing strategy based on gold nanoparticle-bioconjugate and thymine–Hg²⁺–thymine coordination chemistry

X. Tang, H. Liu, B. Zou, D. Tian and H. Huang, Analyst, 2012, 137, 309 DOI: 10.1039/C1AN15908A

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