Issue 33, 2011
From the journal:

Chemical Communications

Molecular sensitivity of DNA–Ag–PATP hybrid on optical activity for ultratrace mercury analysis†

Honglin Liu,a   Liangbao Yang,*a   Hongwei Ma,a   Zhimei Qib  and  Jinhuai Liu*a  

* Corresponding authors

a Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, China
E-mail: lbyang@iim.ac.cn, jhliu@iim.ac.cn
Fax: +86 551-5592420

b Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China

Abstract

The para-aminothiophenol (PATP), in which the thiol groups adsorbed on the Ag surface and the amino groups coordinated with Hg2+, can mediate the aggregation of sunlight-reduced λ-DNA-templated Ag nanoparticles, resulting in high molecular sensitivity of this hybrid on optical activity. Sub-pM levels of Hg2+ assays were achieved based on this molecular stepwise assembly.

Graphical abstract: Molecular sensitivity of DNA–Ag–PATP hybrid on optical activity for ultratrace mercury analysis

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Article information

DOI
https://doi.org/10.1039/C1CC13336E
Article type
Communication
Submitted
05 Jun 2011
Accepted
04 Jul 2011
First published
18 Jul 2011

Chem. Commun., 2011,47, 9360-9362

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Molecular sensitivity of DNA–Ag–PATP hybrid on optical activity for ultratrace mercury analysis

H. Liu, L. Yang, H. Ma, Z. Qi and J. Liu, Chem. Commun., 2011, 47, 9360 DOI: 10.1039/C1CC13336E

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