eprintid: 17288
rev_number: 22
userid: 1419
dir: disk0/00/01/72/88
datestamp: 2013-02-14 21:13:20
lastmod: 2021-06-13 01:55:24
status_changed: 2013-02-14 21:13:20
type: article
metadata_visibility: show
item_issues_count: 0
eprint_status: archive
creators_name: Zhang, JT
creators_name: Wang, L
creators_name: Chao, X
creators_name: Asher, SA
creators_email: 
creators_email: 
creators_email: 
creators_email: asher@pitt.edu
creators_id: 
creators_id: 
creators_id: 
creators_id: ASHER
title: Periodicity-controlled two-dimensional crystalline colloidal arrays
ispublished: pub
divisions: sch_as_chemistry
full_text_status: public
abstract: 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
date_type: published
publication: Langmuir
volume: 27
number: 24
pagerange: 15230 - 15235
refereed: TRUE
issn: 0743-7463
id_number: 10.1021/la203363e
pmid: 22007604
citation:   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     
document_url: http://d-scholarship-dev.library.pitt.edu/17288/1/licence.txt