DNA-based sensitization of Tb3+ luminescence regulated by Ag+ and cysteine: use as a logic gate and a H2O2 sensor

Min Zhang; Zhi-bei Qu; Hai-Yan Ma; Tianshu Zhou; Guoyue Shi

doi:10.1039/C4CC01065E

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DNA-based sensitization of Tb³⁺ luminescence regulated by Ag⁺ and cysteine: use as a logic gate and a H₂O₂ sensor†

Min Zhang,^a Zhi-bei Qu,^a Hai-Yan Ma,^a Tianshu Zhou^b and Guoyue Shi*^a

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* Corresponding authors

^a Department of Chemistry, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
E-mail: gyshi@chem.ecnu.edu.cn
Fax: +86-21-54340043
Tel: +86-21-54340043

^b Department of Environmental Science, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China

Abstract

A simple and facile strategy was developed for regulating the luminescence of Tb³⁺ sensitized by DNA, in which Ag⁺ and cysteine (Cys) act as activators. The Ag⁺/Cys-mediated reversible luminescence changes in the Tb³⁺–DNA sensing system enabled the design of a DNA INHIBIT logic gate and a H₂O₂ sensor in a time-resolved luminescence format.

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Article information

DOI: https://doi.org/10.1039/C4CC01065E
Article type: Communication
Submitted: 10 Feb 2014
Accepted: 25 Feb 2014
First published: 25 Feb 2014

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Chem. Commun., 2014,50, 4677-4679

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DNA-based sensitization of Tb³⁺ luminescence regulated by Ag⁺ and cysteine: use as a logic gate and a H₂O₂ sensor

M. Zhang, Z. Qu, H. Ma, T. Zhou and G. Shi, Chem. Commun., 2014, 50, 4677 DOI: 10.1039/C4CC01065E

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