Manipulation of microfluidic flow pattern by optically controlled electroosmosis

László Oroszi, A. Dér, Huba Kirei, Vilmos Rakovics, P. Ormos

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Light is used to dynamically control the pattern of electroosmotic flow in a microfluidic channel. One wall of the channel is formed by a photoconductor film in a specific geometry. Illumination of this surface results in an increase of the conductivity that modifies the structure of the electric field inside the channel. A dramatic change of the electroosmotic flow pattern can be achieved. This approach provides useful capabilities for the manipulation of fluids in microfluidic systems like directing flow and mixing.

Original languageEnglish
Pages (from-to)565-569
Number of pages5
JournalMicrofluidics and Nanofluidics
Volume6
Issue number4
DOIs
Publication statusPublished - 2009

Fingerprint

Electroosmosis
Microfluidics
Flow patterns
manipulators
flow distribution
Photoconducting materials
photoconductors
Lighting
Electric fields
Fluids
Geometry
illumination
conductivity
electric fields
fluids
geometry

Keywords

  • Electroosmosis
  • Microfluidics
  • Off-axis flow
  • Optical control
  • Photoconductor

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry

Cite this

Manipulation of microfluidic flow pattern by optically controlled electroosmosis. / Oroszi, László; Dér, A.; Kirei, Huba; Rakovics, Vilmos; Ormos, P.

In: Microfluidics and Nanofluidics, Vol. 6, No. 4, 2009, p. 565-569.

Research output: Contribution to journalArticle

Oroszi, László ; Dér, A. ; Kirei, Huba ; Rakovics, Vilmos ; Ormos, P. / Manipulation of microfluidic flow pattern by optically controlled electroosmosis. In: Microfluidics and Nanofluidics. 2009 ; Vol. 6, No. 4. pp. 565-569.
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