Flexible colorimetric detection of mercuric ion by simply mixing nanoparticles and oligopeptides
Boey, Freddy Yin Chiang
Date of Issue2011
School of Materials Science and Engineering
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.