Fluorometric sensing of Cu2+ ion with smart fluorescence light-up probe, triazolylpyrene (TNDMBPy)

被引：31

作者：

Bag, Subhendu Sekhar ^{[1
]}

Kundu, Rajen ^{[1
]}

Talukdar, Sangita ^{[1
]}

机构：

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

来源：

TETRAHEDRON LETTERS | 2012年 / 53卷 / 44期

关键词：

Click fluorophore fluorescence light-up probe; Chemosensor; Selective detection of Cu(II) on; Cu(II) ion detection inside micelle; Excimer/monomer fluorescence; AQUEOUS-SOLUTION; SENSOR; COPPER(II); EMISSION; FLUOROIONOPHORE; SENSITIVITY; COMPLEX;

D O I：

10.1016/j.tetlet.2012.08.074

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

We report the detection of Cu2+ ion with fluorescence light-up probe, triazolylpyrene (Py-TNDMB). Thus, the probe showed a remarkable fluorescence enhancement of both of the monomer and excimer emissions and a 2:1 probe-Cu2+ complexation with high selectivity, high stability constant and low detection limit. Formation of the excimer was also rationalized on the basis of DFT calculation. Our probe is also capable of sensing SDS micelle-encapsulated-Cu2+ ion in aqueous media with high association constant, thus, showing its practical utility. Thus, our probe could be used as an efficient Cu2+ ion selective fluorescence light-up probe, and may find applications in chemical and biological systems. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：5875 / 5879

页数：5

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