Colorimetric and fluorescent "on-off" chemosensor for Cu2+ in semi-aqueous medium

被引：34

作者：

Fegadea, Umesh ^{[1
,3
]}

Sahoo, Suban K. ^{[2
]}

Attarde, Sanjay ^{[3
]}

Singh, Narinder ^{[4
]}

Kuwar, Anil ^{[1
]}

机构：

[1] North Maharashtra Univ, Sch Chem Sci, Jalgaon 425001, MS, India

[2] SV Natl Inst Technol, Dept Appl Chem, Surat 395007, Gujarat, India

[3] North Maharashtra Univ, Sch Earth & Environm Sci, Jalgaon 425001, MS, India

[4] Indian Inst Technol, Dept Chem, Rupanagar, Punjab, India

来源：

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

关键词：

Chemosensor; Colorimetric; Fluorescent receptor; Cu2+; DFT; PROTON-TRANSFER ESIPT; DIPODAL ZN2+ COMPLEX; RECEPTOR; SENSOR; COPPER; FLUORIDE; PROBE;

D O I：

10.1016/j.snb.2014.06.033

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A colorimetric and fluorescent 'on-off' chemosensor 1 was developed for the selective and sensitive detection of Cu2+ over the other examined metal ions. Upon addition of Cu2+, sensor 1 exhibits moderate enhancement in the absorbance intensity with a naked-eye detectable colour change from colourless to yellow in DMSO/H2O (50:50, v/v). Also, the emission of 1 was selectively quenched in the presence Cu2+ with fast response and the detection limit was found to be 50 nM. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：924 / 928

页数：5

共 27 条

[1] Photoinduced Electron Transfer (PET) Based Zn2+ Fluorescent Probe: Transformation of Turn-On Sensors into Ratiometric Ones with Dual Emission in Acetonitrile [J].