A simple strategy for prompt visual sensing by gold nanoparticles: General applications of interparticle hydrogen bonds
Journal
Angewandte Chemie - International Edition
Journal Volume
45
Journal Issue
30
Pages
4948-4951
Date Issued
2006
Author(s)
Abstract
Local color: Gold nanoparticles (GNPs) bifunctionalized with a crown ether and thioctic acid can be used for the rapid sensing of a target analyte with the naked eye. A color transformation occurs when the interparticle hydrogen bonds of aggregated GNPs are broken forming a dispersion. For example, the detection of PbII takes only 1 s (see picture). (Figure Presented). © 2006 Wiley-VCH Verlag GmbH & Co. KGaA.
Type
journal article