| Info. | Vol.6 - No.4 (2012.12.20) |
|---|---|
| Title | Fabrication process for an electrochemical microfluidic chip containing a microvalve system |
| Authors | Soeun Park1, Soong Ho Um2 & Young-Kee Kim1 |
| Institutions | 1Department of Chemical Engineering, Program of Integrated
Biotechnology, and Research Center of Chemical Technology,
Hankyong National University, Anseong, Gyeonggi-Do 456-749, Korea 2School of Chemical Engineering and SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, Gyeonggi-Do 440-746, Korea Correspondence and requests for materials should be addressed to Y.-K. Kim ( kim@hknu.ac.kr) |
| Abstract | A microvalve system is a useful tool to operate microfluidic devices. Push-up pneumatic microvalves are common when manufacturing microfluidic devices containing microvalves. In this study, the development of a push-down pneumatic microvalve was attempted, because push-down operation is useful in electrochemical microfluidic devices. In order to optimize the factors involved in fabricating the pushdown microvalve system, the layer configuration and structure of the fluidic channel were determined. The thickness of the fluidic layer was also optimized. The composition of stamp bonding material, which is a mixture of polydimethylsiloxane and hexane, was determined to achieve complete attachment. A microfluidic device containing a microvalve system was successfully fabricated via the optimized fabrication procedure, and good valve operating performance was confirmed through chip operation. |
| Keyword | Microfluidic device, Pneumatic microvalve, Push-down type, PDMS, lectrochemical chip |
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