relation: http://d-scholarship-dev.library.pitt.edu/17288/
title: Periodicity-controlled two-dimensional crystalline colloidal arrays
creator: Zhang, JT
creator: Wang, L
creator: Chao, X
creator: Asher, SA
description: We developed a convenient and fast approach to preparing close-packed two-dimensional (2-D) particle arrays on mercury surfaces. Addition of cosolvents, such as alcohols, to aqueous colloidal particle suspensions induces spreading and self-assembly of the particles into 2-D arrays on top of the mercury surface. We can fabricate large-area close-packed 2-D arrays (>70 cm 2) within 30 s. We attached these 2-D arrays to functional hydrogel films such that the 2-D array spacings were altered by the hydrogel volume response to the environment. We directly observed the hydrogel volume induced 2-D array spacing changes by using confocal laser scanning microscopy to monitor the spacings of fluorescent polystyrene particle 2-D arrays in response to changes in pH, solvent composition, temperature, etc. © 2011 American Chemical Society.
date: 2011-12-20
type: Article
type: PeerReviewed
format: text/plain
language: en
rights: attached
identifier: http://d-scholarship-dev.library.pitt.edu/17288/1/licence.txt
identifier:   Zhang, JT and Wang, L and Chao, X and Asher, SA  (2011) Periodicity-controlled two-dimensional crystalline colloidal arrays.  Langmuir, 27 (24).  15230 - 15235.  ISSN 0743-7463     
relation: 10.1021/la203363e