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Novel Fabrication Process for Micro-Fluidic Channels and the Effect of the Surface States on the Fluid Flow  

박미석 (연세대학교 대학원 기계공학과)
김진산 (연세대학교 대학원 기계공학과)
성인하 (연세대학교 대학원 기계공학과)
김대은 (연세대학교 기계공학부)
신보성 (부산대학교 정밀정형 및 금형가공 연구소)
Publication Information
Journal of the Korean Society for Precision Engineering / v.21, no.1, 2004 , pp. 87-93 More about this Journal
Abstract
Recently, with the development of bio-technology the interests in the micro-fluidic devices for analysis in the fields of biology and medical science have been steadily increasing. Although polymer is considered as one of the best materials for micro-fluidic devices. glass or silicon molds fabricated by photo-lithographic technique have been commonly used. However, it is generally perceived that the conventional photolithographic technique has the limitation for fabricating micro-channels for micro-fluidic devices. In this work, the possibility of fabrication of micro-fluidic channels on PDMS by using the mechano-chemical process and the effect of surface states on the fluid flow were investigated. Experimental results revealed that PDMS mold fabricated by the mechano-chemical process could be used effectively to replicate micro-fluidic channels with high reproducibility and dimensional accuracy. It was also found that the fluid flow generation and flow speed were largely affected by the hydrophilicity and the surface roughness of the micro-channel surfaces.
Keywords
Mechano-chemical process; Micro-fluidic channel; Micro-tribology; Polydimethylsiloxane (PDMS); Surface wettability;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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