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Recording of Surface-Driven Capillary Flow in Polymer-Based Microfluidic Devices for Bioengineering Applications

Subhadeep Mukhopadhyay

Abstract


In this work, the recording of surface-driven capillary flow in four individual polymer microfluidic devices is reported. Dyed ethylene glycol is the selected working liquid. Four individual audio-video-interleave-files as FileName.avi are obtained. Polymethylmethacrylate (PMMA) and SU-8 are the chosen polymers to fabricate these microfluidic devices. To fabricate the PMMA microfluidic device, an SU-8 based silicon stamp is fabricated and used. To fabricate three individual SU-8 based glass microfluidic devices, a solution of PMMA dissolved in EC solvent (SU-8 developer) is used as adhesive material in the indirect bonding technique. Maskless lithography, hot embossing lithography and direct bonding technique are used to fabricate the PMMA microfluidic device. Maskless lithography and indirect bonding technique are used to fabricate the SU-8 based glass microfluidic devices. CMOS camera is used to record the individual surface-driven capillary flow. This work will be useful to fabricate the polymer based microfluidic laboratory-on-a-chip systems for bioengineering applications.

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References


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