Axial particle displacements in fluid slugs after passing a simple serpentiform microchannel

Dar Sun Liou, Long Sheng Kuo, Ping Hei Chen, Tien Li Chang, Chin Ting Yang

研究成果: 雜誌貢獻文章

1 引文 斯高帕斯(Scopus)

摘要

In this work, we designed a simple microchannel to separate particles in fluids by size. We found that mixtures of polystyrene 2 and 0.5 μm particles in a fluid slug can be differentiated by size after passing a long serpentiform microchannel. In contrast to the tubular pinch effect, which separates the particle in radial direction, we found that the particle suspensions in fluid slugs are displaced along the flow directions. The separation performance increases with the increasing flow velocity. The feature of differentiation along the flow directions in our device leads to the result that the separation process can be easily improved by stretching the slug before cutting the slug into pieces. Furthermore, the alternative air slugs between working fluid slugs can also prevent clogging inside the microchannels.

原文英語
頁(從 - 到)145-148
頁數4
期刊Microfluidics and Nanofluidics
7
發行號1
DOIs
出版狀態已發佈 - 2009 一月 1

ASJC Scopus subject areas

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

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