TY  - JOUR
ID  - pittir17288
UR  - http://d-scholarship-dev.library.pitt.edu/17288/
IS  - 24
A1  - Zhang, JT
A1  - Wang, L
A1  - Chao, X
A1  - Asher, SA
Y1  - 2011/12/20/
N2  - 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.
JF  - Langmuir
VL  - 27
SN  - 0743-7463
TI  - Periodicity-controlled two-dimensional crystalline colloidal arrays
SP  - 15230 
AV  - public
EP  -  15235
ER  -