Journal of the Korean Society of Manufacturing Technology Engineers (한국생산제조학회지)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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Microfluidic Suction Pump based on Restoring Force of Elastomer for Liquid Transportation in Microfluidic System

미세유체시스템의 유체이송을 위한 탄성체의 복원력을 이용한 흡입형 미세유체펌프

  • Byun, Kang Il (Department of Conversion System Engineering, Kangwon National University) ;
  • Han, Eui Don (Department of Conversion System Engineering, Kangwon National University) ;
  • Kim, Byeong Hee (Department of Conversion System Engineering, Kangwon National University) ;
  • Seo, Young Ho (Department of Conversion System Engineering, Kangwon National University)
  • Received : 2014.08.11
  • Accepted : 2014.11.21
  • Published : 2015.02.15
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Abstract

This paper presents a disposable passive suction pump that uses the restoring force of an elastomeric chamber for liquid transportation in a microfluidic system. The proposed suction pump can be operated by finger pressure without any peripheral equipment. To adjust the generated suction pressure, five different displacements of the suction chamber ceiling, two different chamber shapes, and five different elastic moduli of the elastomer were considered. For a cylindrical chamber with a 5 mm height and 5 mm radius, the generated suction pressure and flow rate increased almost linearly up to about 31 kPa and $160.8{\mu}L/min$, respectively, depending on the chamber deformation. A maximum suction pressure of $42.9{\pm}0.7kPa$ was obtained for a hemispherical chamber with a 2.1 mm height and 5 mm radius.

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References

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