A benzothiazole containing CHEF based fluorescence turn-ON sensor for Zn2+ and Cd2+ and subsequent sensing of H2PO4- and P4O74- in physiological pH

被引：107

作者：

Gogoi, Abhijit ^{[1
]}

Samanta, Soham ^{[1
]}

Das, Gopal ^{[1
]}

机构：

[1] Indian Inst Technol Guwahati, Dept Chem, Gauhati 781039, India

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2014年 / 202卷

关键词：

Fluorescence turn-ON; Chelation Enhanced Fluorescence Enhancement (CHEF); INHIBIT logic gate; Pyrophosphate sensing; LOGIC GATE; ZINC; CHEMOSENSORS; CADMIUM; COMPLEX; ZN(II); IONS; CD(II); NITROAROMATICS; DISCRIMINATION;

D O I：

10.1016/j.snb.2014.06.012

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A benzothiazole functionalized chemosensor L-1, exhibited colorimetric as well as fluorometric response to Zn2+ ion at physiological pH based on CHEF process. Selective naked eye detection of Zn2+ ion over most of the biologically important cations was also demonstrated. Sensing of biologically hazardous cadmium ion was also possible with L-1. Further, both the zinc and cadmium ensembles of L-1 were found to respond P4O74- and H2PO4- anion among other important biological anions and nucleotides via fluorescence quenching. Chemosensor L1, was also found to be reversible and recyclable toward Zn2+ and pyrophosphate ions over more than six cycles and responds to a INHIBIT logic gate. NMR titration and theoretical calculations were also conducted to understand the sensing behavior of L-1. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：788 / 794

页数：7

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