A supramolecular probe for colorimetric detection of Pb2+ based on recognition of G-quadruplex

Hongbo Chen; Hongxia Sun; Xiufeng Zhang; Xiaoran Sun; Yunhua Shi; Yalin Tang

doi:10.1039/C4RA11395K

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A supramolecular probe for colorimetric detection of Pb²⁺ based on recognition of G-quadruplex†

Hongbo Chen,^ab Hongxia Sun,*^b Xiufeng Zhang,*^a Xiaoran Sun,^a Yunhua Shi^b and Yalin Tang*^b

Author affiliations

* Corresponding authors

^a College of Chemistry Engineering, Hebei United University, Tangshan, Hebei, PR China
E-mail: zhangxf@heuu.edu.cn

^b National Laboratory for Molecular Sciences, Center for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry Chinese Academy of Sciences, Beijing 100190, PR China
E-mail: hongxsun@iccas.ac.cn, tangyl@iccas.ac.cn

Abstract

A colorimetric probe of Pb²⁺ has been designed based on the mechanism that a supramolecular probe selectively recognized the Pb²⁺-induced conformational transition of G-quadruplexes. The probe exhibited high sensitivity and selectivity towards Pb²⁺, which enabled it to be practically used in detection of the Pb²⁺ level in a freshwater system.

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Supplementary information PDF (243K)

Article information

DOI: https://doi.org/10.1039/C4RA11395K
Article type: Communication
Submitted: 28 Sep 2014
Accepted: 27 Nov 2014
First published: 28 Nov 2014

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RSC Adv., 2015,5, 1730-1734

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A supramolecular probe for colorimetric detection of Pb²⁺ based on recognition of G-quadruplex

H. Chen, H. Sun, X. Zhang, X. Sun, Y. Shi and Y. Tang, RSC Adv., 2015, 5, 1730 DOI: 10.1039/C4RA11395K

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