A “turn-on” fluorescent sensor for detection of Pb2+ based on graphene oxide and G-quadruplex DNA

Xiang Li; Gongke Wang; Xuelian Ding; Yuhan Chen; Yaping Gou; Yan Lu

doi:10.1039/C3CP00047H

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A “turn-on” fluorescent sensor for detection of Pb²⁺ based on graphene oxide and G-quadruplex DNA†

Xiang Li,^a Gongke Wang,^a Xuelian Ding,^a Yuhan Chen,^a Yaping Gou^a and Yan Lu*^a

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* Corresponding authors

^a School of Chemistry and Chemical Engineering, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, PR China
E-mail: yanlu2001@sohu.com
Fax: +86-373-3325249
Tel: +86-373-3325249

Abstract

A rapid, sensitive and selective fluorescence sensor for detection of Pb²⁺ was developed based on a Pb²⁺-induced G-quadruplex and graphene oxide. By using a specific G-rich DNA sequence, this strategy provided a promising alternative to Pb²⁺ determination in the presence of Hg²⁺ escaping from the use of a masking agent of Hg²⁺.

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Article information

DOI: https://doi.org/10.1039/C3CP00047H
Article type: Communication
Submitted: 07 Jan 2013
Accepted: 19 Apr 2013
First published: 23 Apr 2013

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Phys. Chem. Chem. Phys., 2013,15, 12800-12804

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A “turn-on” fluorescent sensor for detection of Pb²⁺ based on graphene oxide and G-quadruplex DNA

X. Li, G. Wang, X. Ding, Y. Chen, Y. Gou and Y. Lu, Phys. Chem. Chem. Phys., 2013, 15, 12800 DOI: 10.1039/C3CP00047H

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