A traveling-wave micropump for aqueous solutions: Comparison of 1 g and μg results

A traveling-wave micropump for aqueous solutions: Comparison of 1 g and μg results

The operation of a micro‐chip‐based fluid circulator based on the interaction of a high‐frequency traveling wave with a thermally generated inhomogeneity in an aqueous medium is investigated. The profiles of the electric field, the thermal gradient and the driving force within the device are derived...

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Veröffentlicht in:Electrophoresis 1993, Vol.14 (1), p.764-772
Hauptverfasser: Müller, Torsten, Arnold, W. Michael, Schnelle, Thomas, Hagedorn, Rolf, Fuhr, Günter, Zimmermann, Ulrich
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Sprache:eng
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Biological and medical sciences
Diverse techniques
Fundamental and applied biological sciences. Psychology
Molecular and cellular biology
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container_issue 1
container_start_page 764
container_title Electrophoresis
container_volume 14
creator Müller, Torsten
Arnold, W. Michael
Schnelle, Thomas
Hagedorn, Rolf
Fuhr, Günter
Zimmermann, Ulrich
description The operation of a micro‐chip‐based fluid circulator based on the interaction of a high‐frequency traveling wave with a thermally generated inhomogeneity in an aqueous medium is investigated. The profiles of the electric field, the thermal gradient and the driving force within the device are derived numerically, and the dependence upon applied voltage under different experimental conditions is derived. The importance of convection in the operation of the device is assessed by operating it in various orientations, as well as under microgravity, and also by investigating the reversal and turn‐on characteristics. The pump showed the unexpected ability to trap microparticles present in the driven fluid.
doi_str_mv 10.1002/elps.11501401120
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subjects Biological and medical sciences
Diverse techniques
Fundamental and applied biological sciences. Psychology
Molecular and cellular biology
title A traveling-wave micropump for aqueous solutions: Comparison of 1 g and μg results
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