Highly selective and ultrasensitive detection of Hg2+ based on fluorescence quenching of Au nanoclusters by Hg2+-Au+ interactions

被引：676

作者：

Xie, Jianping ^{[1
]}

Zheng, Yuangang ^{[1
]}

Ying, Jackie Y. ^{[1
]}

机构：

[1] Inst Bioengn & Nanotechnol, Singapore 138669, Singapore

来源：

CHEMICAL COMMUNICATIONS | 2010年 / 46卷 / 06期

关键词：

METALLOPHILIC INTERACTIONS; COLORIMETRIC DETECTION; GOLD NANOPARTICLES; MERCURIC ION; SENSOR; MERCURY(II); PROTEINS; ASSAY;

D O I：

10.1039/b920748a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A simple label-free method for the detection of Hg2+ ions with high selectivity and sensitivity has been developed by using fluorescent Au NCs in aqueous media. The sensing mechanism was based on the high-affinity metallophilic Hg2+-Au+ interactions, which effectively quenched the fluorescence of Au NCs.

引用

页码：961 / 963

页数：3

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