Hydrogen-Bonding Recognition-Induced Color Change of Gold Nanoparticles for Visual Detection of Melamine in Raw Milk and Infant Formula

被引：518

作者：

Ai, Kelong ^{[1
]}

Liu, Yanlan ^{[1
]}

Lu, Lehui ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Peoples R China

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2009年 / 131卷 / 27期

关键词：

Hydrogen bonds - Hydrogen - Fiber optic sensors - Metal nanoparticles - Color - Colorimetry;

D O I：

10.1021/ja9037017

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The color change induced by triple hydrogen-bonding recognition between melamine and a cyanuric acid derivative grafted on the surface of gold nanoparticles can be used for reliable detection of melamine. Since such a color change can be readily seen by the naked eye, the method enables on-site and real-time detection of melamine in raw milk and infant formula even at a concentration as low as 2.5 ppb without the aid of any advanced instruments.

引用

页码：9496 / +

页数：3

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