Particle separation, chemical gradient control and micromixing via focused travelling surface acoustic waves (F-TSAW)

  • G. Destgeer
  • , S. Im
  • , J. H. Jung
  • , B. H. Ha
  • , H. W. Kang
  • , K. H. Lee
  • , M. A. Ansari
  • , A. Alazzam
  • , H. J. Sung

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We demonstrate a novel focused travelling surface acoustic waves (F-TSAW) based microchip to continuously separate microparticles, generate chemical gradient, and uniformly mix fluids inside a polydimethylsiloxane (PDMS) microchannel. Previously reported acoustofluidic based separator [1] used standing surface acoustic waves (SSAW) whereas gradient generator [2] and micromixers [3] depended on oscillating bubbles. Our microchip requires a single focusing transducer and is void of oscillating bubbles. A cumbersome microchannel alignment step, which is essential for the working of SSAW particle separator, is also eliminated. All three functions - separation, gradient generation and micromixing - are performed using high frequency F-TSAW and appropriate microchannel design.

Original languageBritish English
Title of host publication17th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2013
Pages1971-1973
Number of pages3
StatePublished - 2013
Event17th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2013 - Freiburg, Germany
Duration: 27 Oct 201331 Oct 2013

Publication series

Name17th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2013
Volume3

Conference

Conference17th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2013
Country/TerritoryGermany
CityFreiburg
Period27/10/1331/10/13

Keywords

  • Acoustofluidics
  • Gradient generation
  • Micromixing
  • Particle separation
  • Surface acoustic waves

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