Rhodamine-based fluorescent sensor for mercury in buffer solution and living cells

被引：111

作者：

Wang, Huan-Huan ^{[1
,3
]}

Xue, Lin ^{[1
]}

Yu, Cai-Lan ^{[1
]}

Qian, Yuan-Yu ^{[2
]}

Jiang, Hua ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Chem, CAS Key Lab Photochem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China

[2] Chinese Peoples Liberat Army Gen Hosp, Emergency Dept, Beijing 100853, Peoples R China

[3] Chinese Acad Sci, Grad Sch, Beijing 100190, Peoples R China

来源：

DYES AND PIGMENTS | 2011年 / 91卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Fluorescent sensor; Selectivity; Mercury; Rhodamine; Cellular imaging; pH stable; RECOGNITION PREFERENCE; SELECTIVE FLUORESCENT; MINAMATA DISEASE; AQUEOUS-SOLUTION; HG2+ IONS; PROBE; CHEMODOSIMETER; CHEMOSENSOR; SENSITIVITY; EXPOSURE;

D O I：

10.1016/j.dyepig.2011.04.007

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A novel fluorescent sensor based on thiooxorhodamine B has been prepared to detect Hg2+ in aqueous buffer solution. It demonstrates high selectivity for sensing Hg2+ with about 383-fold enhancement in fluorescence emission intensity and micromolar sensitivity (K-d = 7.5 x 10(-6) mol L-1) in comparison with alkali and alkaline earth metal ions (K+, Na+, Mg2+, Ca2+) and other transition metal ions (Mn2+, Ni2+, Co2+, Cu2+, Zn2+, Cd2+, Ag+, Pb2+, Cr3+, Fe3+). Meanwhile the distinct color changes and rapid switch-on fluorescence also provide 'naked eyes' detection for Hg2+ over a broad pH range. Moreover, such sensor is cell-permeable and can visualize the changes of intracellular mercury ions in living cells using fluorescence microscopy. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：350 / 355

页数：6

共 58 条

[1] Calix[4]arene-based, Hg2+-induced intramolecular fluorescence resonance energy transfer chemosensor [J].