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http://dx.doi.org/10.3795/KSME-A.2012.36.5.475

Electrical and Fluidic Characterization of Microelectrofluidic Bench Fabricated Using UV-curable Polymer  

Youn, Se-Chan (Dept. of Bio and Brain Engineering, KAIST)
Jin, Young-Hyun (Dept. of Bio and Brain Engineering, KAIST)
Cho, Young-Ho (Dept. of Bio and Brain Engineering, KAIST)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.36, no.5, 2012 , pp. 475-479 More about this Journal
Abstract
We present a novel polymer fabrication process involving direct UV patterning of a hyperbranched polymer, AEO3000. Compared to PDMS, which is the most widely used polymer in bioMEMS devices, the present polymer has advantages with regard to electrode integration and fast fabrication. We designed a four-chip microelectrofluidic bench having three electrical pads and two fluidic I/O ports. We integrated a microfluidic mixer and a cell separator on the bench to characterize the interconnection performance and sample manipulation. Electrical and fluidic characterization of the microfluidic bench was performed. The measured electrical contact resistance was $0.75{\pm}0.44{\Omega}$, which is small enough for electrical applications, and the pressure drop was 8.3 kPa, which was 39.3% of the value in the tubing method. By performing yeast mixing and a separation test in the integrated module on the bench, we successfully showed that the interconnected chips could be used for bio-sample manipulation.
Keywords
Lab-on-a-chip; MicroTAS; Microfluidic Bench;
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