A label-free fluorescent sensor for Pb2+ based on G-quadruplex and graphene oxide

Yunfeng Bai; Lu Zhao; Zezhong Chen; Haiyan Wang; Feng Feng

doi:10.1039/C4AY01389A

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A label-free fluorescent sensor for Pb²⁺ based on G-quadruplex and graphene oxide†

Yunfeng Bai,^ab Lu Zhao,^a Zezhong Chen,^a Haiyan Wang^a and Feng Feng*^ab

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* Corresponding authors

^a College of Chemistry and Chemical Engineering, Shanxi Datong University, Datong 037009, P. R. China
E-mail: feng-feng64@263.net
Fax: +86-352-6100028
Tel: +86-352-7158662

^b School of Chemistry and Materials Science, Shanxi Normal University, Linfen 041004, P. R. China

Abstract

A label-free sensitive and selective fluorescent sensor for Pb²⁺ was developed based on target-induced conformational change of an oligonucleotide and the difference in affinity of graphene oxide for unstructured and G-quadruplex DNA.

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Article information

DOI: https://doi.org/10.1039/C4AY01389A
Article type: Communication
Submitted: 10 Jun 2014
Accepted: 28 Aug 2014
First published: 29 Aug 2014

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Anal. Methods, 2014,6, 8120-8123

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A label-free fluorescent sensor for Pb²⁺ based on G-quadruplex and graphene oxide

Y. Bai, L. Zhao, Z. Chen, H. Wang and F. Feng, Anal. Methods, 2014, 6, 8120 DOI: 10.1039/C4AY01389A

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