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Proceedings Paper

Micromixer based on dielectric stack actuators for medical applications
Author(s): Susana Solano-Arana; Florian Klug; Holger Mößinger; Florentine Förster-Zügel; Helmut F. Schlaak
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Paper Abstract

Based on a previously developed microperistaltic pump, a micromixer made out of dielectric elastomer stack actuators (DESA) is proposed. The micromixer will be able to mix two fluids at the microscale, pumping both fluids in and out of the device. The device consists of three chambers. In the first and second chambers, fluids A and B are hosted, while in the third chamber, fluids A and B are mixed. The fluid flow regime is laminar. The application of voltage leads to an increase of the size of a gap in the z-axis direction, due to the actuators area expansion. This makes a channel open through which the fluid flows. The frequency of the actuation of the different actuators allows an increase of the flow rate. The micromixer can be used for applications such as drug delivery and synthesis of nucleic acids, the proposed device will be made of Polydimethylsiloxane (PDMS) as dielectric and graphite powder as electrode material. PDMS is a biocompatible material, widely used in the prosthesis field. Mixing fluids at a microscale is also in need in the lab-on-achip technology for complex chemical reactions.

Paper Details

Date Published: 25 April 2017
PDF: 9 pages
Proc. SPIE 10163, Electroactive Polymer Actuators and Devices (EAPAD) 2017, 1016332 (25 April 2017); doi: 10.1117/12.2259972
Show Author Affiliations
Susana Solano-Arana, Technische Univ. Darmstadt (Germany)
Florian Klug, Technische Univ. Darmstadt (Germany)
Holger Mößinger, Technische Univ. Darmstadt (Germany)
Florentine Förster-Zügel, Technische Univ. Darmstadt (Germany)
Helmut F. Schlaak, Technische Univ. Darmstadt (Germany)

Published in SPIE Proceedings Vol. 10163:
Electroactive Polymer Actuators and Devices (EAPAD) 2017
Yoseph Bar-Cohen, Editor(s)

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