Biomaterials, Biodegradables and Biomimetics Research Group

Papers in Scientific Journals

Two-Dimensional Open Microfluidic Devices by Tuning the Wettability on Patterned Superhydrophobic Polymeric Surface

Abstract

We present a simple and economical method to produce a potential open microfluidic polymeric device. Biomimetic superhydrophobic surfaces were prepared on polystyrene using a phase separation methodology. Patterned two-dimensional channels were imprinted on the superhydrophobic substrates by exposing the surface to plasma or UV–ozone radiation. The wettability of the channels could be precisely controlled between the superhydrophobic and superhydrophilic states by changing the exposure time. The ability of superhydrophilic paths to drive liquid flows in a horizontal position was found to be significantly higher than for the case of hydrophilic paths patterned onto smooth surfaces. 

Journal
Applied Physics Express
Volume
3
Pagination
085205
Publisher
Japan Society of Applied Physics
URL
http://apex.jsap.jp/link?APEX/3/085205/
Keywords
Microfluidic, superhydrophobic surfaces
Rights
Restricted Access
Peer Reviewed
Yes
Status
published
Year of Publication
2010
DOI
10.1143/APEX.3.085205
Date Published
2010-08-06
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