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Electrokinetic wall effect mechanisms and applications

Beech, Jason P. LU ; Ho, Bao Dang LU ; Ström, Oskar LU orcid and Tegenfeldt, Jonas O. LU orcid (2020) 24th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2020 In MicroTAS 2020 - 24th International Conference on Miniaturized Systems for Chemistry and Life Sciences p.42-43
Abstract

Under the application of longitudinal electric fields in microchannels, microparticles experience lift forces that push them away from the channel walls and affect their trajectories. At high frequencies (>100KHz) the dielectrophoretic forces dominate and are well understood but at lower frequencies there is little agreement as to the exact nature of the forces, how they are generated and how they vary due to the many different experimental conditions that are used in microfluidics devices. Here we present an experimental study of these mechanisms.

Please use this url to cite or link to this publication:
author
; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
AC-Electrokinetics, Buoyancy, Electrokinetics, Lift forces, Wall forces
host publication
MicroTAS 2020 - 24th International Conference on Miniaturized Systems for Chemistry and Life Sciences
series title
MicroTAS 2020 - 24th International Conference on Miniaturized Systems for Chemistry and Life Sciences
pages
2 pages
publisher
Chemical and Biological Microsystems Society
conference name
24th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2020
conference location
Virtual, Online
conference dates
2020-10-04 - 2020-10-09
external identifiers
  • scopus:85098253142
ISBN
9781733419017
language
English
LU publication?
yes
id
35ee74ad-4f1e-4bb0-918b-2e744c004d63
date added to LUP
2021-01-11 07:31:54
date last changed
2023-09-24 18:41:11
@inproceedings{35ee74ad-4f1e-4bb0-918b-2e744c004d63,
  abstract     = {{<p>Under the application of longitudinal electric fields in microchannels, microparticles experience lift forces that push them away from the channel walls and affect their trajectories. At high frequencies (&gt;100KHz) the dielectrophoretic forces dominate and are well understood but at lower frequencies there is little agreement as to the exact nature of the forces, how they are generated and how they vary due to the many different experimental conditions that are used in microfluidics devices. Here we present an experimental study of these mechanisms.</p>}},
  author       = {{Beech, Jason P. and Ho, Bao Dang and Ström, Oskar and Tegenfeldt, Jonas O.}},
  booktitle    = {{MicroTAS 2020 - 24th International Conference on Miniaturized Systems for Chemistry and Life Sciences}},
  isbn         = {{9781733419017}},
  keywords     = {{AC-Electrokinetics; Buoyancy; Electrokinetics; Lift forces; Wall forces}},
  language     = {{eng}},
  pages        = {{42--43}},
  publisher    = {{Chemical and Biological Microsystems Society}},
  series       = {{MicroTAS 2020 - 24th International Conference on Miniaturized Systems for Chemistry and Life Sciences}},
  title        = {{Electrokinetic wall effect mechanisms and applications}},
  year         = {{2020}},
}