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Recording of Leakage-free Surface-Driven Capillary Flow of Dyed Water in the Dual Sudden Contraction Microchannels

Subhadeep Mukhopadhyay

Abstract


Dual sudden contractionpolymethylmethacrylate (PMMA) microchannels are fabricated by the maskless lithography, hot embossing lithography, direct bonding technique, and atmospheric pressure air dielectric barrier discharge (DBD) plasma processing. The surface-driven capillary flow of dyed water is faster on the processed PMMA surface than the pristine PMMA surface. The surface-driven capillary flow of dyed water is slower in the wider portion and faster in the narrower portion of any dual sudden contraction microchannel.This experimental demonstration is highly useful to design and fabricate the microfluidic lab-on-a-chip systems.


Keywords


Hot embossing, PMMA, DBD, sudden contraction, water

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References


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