Turn-On Fluorescent Chemosensor for Hg2+ Based on Multivalent Rhodamine Ligands

被引：13

作者：

Wang, Xuemei ^{[1
,2
]}

Iqbal, Mudassir ^{[1
,3
]}

Huskens, Jurriaan ^{[1
]}

Verboom, Willem ^{[1
]}

机构：

[1] Univ Twente, Lab Mol Nanofabricat, MESA Inst Nanotechnol, NL-7500 AE Enschede, Netherlands

[2] Logist Engn Univ, Dept Chem & Mat Engn, Chongqing 401311, Peoples R China

[3] Univ Sargodha, Dept Chem, Punjab 40100, Pakistan

来源：

INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES | 2012年 / 13卷 / 12期

关键词：

rhodamine; mercury; chemosensor; fluorescence; RECOGNITION PREFERENCE; SELECTIVE FLUORESCENT; AQUEOUS-SOLUTION; CHEMODOSIMETER; MERCURY; SENSOR; SPIROLACTAM; CU(II); IONS;

D O I：

10.3390/ijms131216822

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Rhodamine-based fluorescent chemosensors 1 and 2 exhibit selective fluorescence enhancement to Fe3+ and Hg2+ over other metal ions at 580 nm in CH3CN/H2O (3/1, v/v) solution. Bis(rhodamine) chemosensor 1, under optimized conditions (CH3CN/HEPES buffer (0.02 M, pH = 7.0) (95/5, v/v)), shows a high selectivity and sensitivity to Hg2+, with a linear working range of 0-50 mu M, a wide pH span of 4-10, and a detection limit of 0.4 mu M Hg2+.

引用

页码：16822 / 16832

页数：11

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