%0 Journal Article
%@ 1433-7851
%A Zhang, JT
%A Wang, L
%A Lamont, DN
%A Velankar, SS
%A Asher, SA
%D 2012
%F pittir:17352
%J Angewandte Chemie - International Edition
%N 25
%P 6117 - 6120
%T Fabrication of large-area two-dimensional colloidal crystals
%U http://d-scholarship-dev.library.pitt.edu/17352/
%V 51
%X Nanoparticle coating: A suspension of colloidal particles in a water/propanol solution was layered onto a water surface, where the particles self-assembled into ordered two-dimensional hexagonal crystal arrays (>280 cm 2) within two minutes. These arrays were transferred from the water surface to other substrates (see picture) and embedded in a chitosan hydrogel for visual detection of the pH value. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.