Simultaneous Particle Separation with AC-Driven Electroosmotic Micropumps

Wolfgang Hilber, Bernhard Weiss, Ahmad Saeed, Thomas Lederer, Bernhard Jakoby

Research output: Contribution to journalArticlepeer-review

Abstract

In this contribution we present a novel mechanism of particle separation in microchannels, based on the tunable ratio of viscous drag, inertial and dielectrophoretic forces. The latter are induced by stepped electrode arrays in the channel, which, driven by AC voltages, enable so-called 3D-AC-electro-osmotic pumping (3D-ACEO). By adjusting the operation parameters of the micropump, particle mixtures can simultaneously be pumped and separated with respect to density.
Original languageEnglish
Pages (from-to)83-87
Number of pages5
JournalInternational Journal of Heat and Technology
Volume28
Issue number1
Publication statusPublished - Jan 2010

Fields of science

  • 203017 Micromechanics
  • 202019 High frequency engineering
  • 202028 Microelectronics
  • 202039 Theoretical electrical engineering
  • 202037 Signal processing
  • 202027 Mechatronics
  • 202036 Sensor systems

JKU Focus areas

  • Mechatronics and Information Processing

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