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Passive continuous particle focusing in a microchannel with symmetric sharp corner structures

  • Liang Laing Fan
  • , Liang Zhao
  • , Xu Kun He
  • , Han Yu
  • , Qing Yu Wei
  • , Jiang Zhe
  • Xi'an Jiaotong University
  • University of Akron

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

Abstract

We report a continuous passive particle focusing method using a novel microchannel with symmetric sharp corners which induce curved streamlines and large centrifugal force on particles. At appropriate flow rate, the centrifugal force generated on particles exceeds the inertial lift force; particles driven by the centrifugal force migrate toward the center of the microchannel, achieving continuous particle focusing. With simple structure and operation, this method can be potentially used in particle focusing and extraction processes in a variety of lab-on-a chip applications.

Original languageEnglish
Title of host publication18th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2014
PublisherChemical and Biological Microsystems Society
Pages1431-1433
Number of pages3
ISBN (Electronic)9780979806476
StatePublished - 2014
Event18th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2014 - San Antonio, United States
Duration: 26 Oct 201430 Oct 2014

Publication series

Name18th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2014

Conference

Conference18th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2014
Country/TerritoryUnited States
CitySan Antonio
Period26/10/1430/10/14

Keywords

  • Centrifugal force
  • Inertial force
  • Microfluidic
  • Particle focusing
  • Sharp corner

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