Buckling of dielectric elastomeric plates for soft, electrically active microfluidic pumps.

Tavakol, Behrouz; Bozlar, Michael; Punckt, Christian; Froehlicher, Guillaume; Stone, Howard A; Aksay, Ilhan A; Holmes, Douglas P · Soft Matter · 2014

basic_science · Level V

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Abstract

Elastic instabilities, when properly implemented within soft, mechanical structures, can generate advanced functionality. In this work, we use the voltage-induced buckling of thin, flexible plates to pump fluids within a microfluidic channel. The soft electrodes that enable electrical actuation are compatible with fluids, and undergo large, reversible deformations. We quantified the onset of voltage-induced buckling, and measured the flow rate within the microchannel. This embeddable, flexible microfluidic pump will aid in the generation of new stand-alone microfluidic devices that require a tunable flow rate.