Flexible Colorimetric Detection of Mercuric Ion by Simply Mixing Nanoparticles and Oligopeptides

被引：88

作者：

Du, Jianjun ^{[1
,2
]}

Sun, Yinghui ^{[1
,2
]}

Jiang, Lin ^{[1
,2
]}

Cao, Xuebo ^{[1
,2
]}

Qi, Dianpeng ^{[3
]}

Yin, Shengyan ^{[1
,2
]}

Ma, Jan ^{[1
,2
]}

Boey, Freddy Y. C. ^{[1
,2
]}

Chen, Xiaodong ^{[1
,2
]}

机构：

[1] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore

[2] Nanyang Technol Univ, Ctr Biomimet Sensor Sci, Singapore 639798, Singapore

[3] Jilin Univ, State Key Lab Supramol Struct & Mat, Coll Chem, Changchun 130012, Peoples R China

来源：

SMALL | 2011年 / 7卷 / 10期

基金：

新加坡国家研究基金会;

关键词：

GOLD NANOPARTICLES; FLUORESCENT-PROBE; OPTICAL-DETECTION; MERCURY(II) IONS; AQUEOUS-MEDIA; HG2+ IONS; PROTEINS; HG(II); SENSOR; HEAVY;

D O I：

10.1002/smll.201002270

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

A colorimetric detection system for Hg2+ in aqueous media is developed with high selectivity and sensitivity based on the mixing of gold nanoparticles and oligopeptides. Oligopeptides with cysteine (Cys) at both ends normally aggregate gold nanoparticles, which can be disturbed by Hg2+ through formation of an oligopeptide-Hg2+ complex. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：1407 / 1411

页数：5

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