Flexible colorimetric detection of mercuric ion by simply mixing nanoparticles and oligopeptides

Flexible colorimetric detection of mercuric ion by simply mixing nanoparticles and oligopeptides

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 forma...

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Bibliographic Details
Main Authors: Chen, Xiaodong, Du, Jianjun, Sun, Yinghui, Jiang, Lin, Cao, Xuebo, Qi, Dianpeng, Yin, Shengyan, Ma, Jan, Boey, Freddy Yin Chiang
Other Authors: School of Materials Science & Engineering
Format: Article
Language:English
Published: 2014
Subjects:
DRNTU::Engineering::Materials::Nanostructured materials
Online Access:https://hdl.handle.net/10356/101998
http://hdl.handle.net/10220/18883
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Institution: Nanyang Technological University
Language: English
Description
Summary: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.

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