A novel electrokinetic micromixer

Hsin Yu Wu, Cheng Hsien Liu

研究成果: 雜誌貢獻文章同行評審

97 引文 斯高帕斯(Scopus)

摘要

We propose and successfully demonstrate a novel microfluidic mixer that takes advantage of field-effect control to dynamically manipulate local flow field to highly enhance mixing effect in microchannel. Theoretical analyses and numerical simulation have been done, including the influences of buffer pH, electrolyte concentration, and radial voltage on the ζ-potential, and the flow field analysis with nonuniform ζ-potential. Experimental results of fluid mixing for our electrokinetic micromixer have been characterized and indicate that over 90% mixing efficiency can be achieve for a 5 mm long microchannel. The velocity profile distortion resulting from nonuniform ζ-potential is also observed. The work reported here is considered as the first time temporal/spatial ζ-potential modulation for microfluidic mixer applications.

原文英語
頁(從 - 到)107-115
頁數9
期刊Sensors and Actuators, A: Physical
118
發行號1
DOIs
出版狀態已發佈 - 1月 31 2005
對外發佈

ASJC Scopus subject areas

  • 電子、光磁材料
  • 儀器
  • 凝聚態物理學
  • 表面、塗料和薄膜
  • 金屬和合金
  • 電氣與電子工程

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