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Proceedings Paper

Dielectric elastomer actuators for active microfluidic control
Author(s): David McCoul; Coleman Murray; Dino Di Carlo; Qibing Pei
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Paper Abstract

Dielectric elastomers with low modulus and large actuation strain have been investigated for applications in which they serve as “active” microfluidic channel walls. Anisotropically prestrained acrylic elastomer membranes are bonded to cover open trenches formed on a silicone elastomer substrate. Actuation of the elastomer membranes increases the cross-sectional area of the resulting channels, in turn controlling hydraulic flow rate and pressure. Bias voltage increases the active area of the membranes, allowing intrachannel pressure to alter channel geometry. The channels have also demonstrated the ability to actively clear a blockage. Applications may include adaptive microfilters, micro-peristaltic pumps, and reduced-complexity lab-on-a-chip devices.

Paper Details

Date Published: 9 April 2013
PDF: 8 pages
Proc. SPIE 8687, Electroactive Polymer Actuators and Devices (EAPAD) 2013, 86872G (9 April 2013); doi: 10.1117/12.2009576
Show Author Affiliations
David McCoul, Univ. of California, Los Angeles (United States)
Coleman Murray, Univ. of California, Los Angeles (United States)
Dino Di Carlo, Univ. of California, Los Angeles (United States)
Qibing Pei, Univ. of California, Los Angeles (United States)

Published in SPIE Proceedings Vol. 8687:
Electroactive Polymer Actuators and Devices (EAPAD) 2013
Yoseph Bar-Cohen, Editor(s)

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