Experimental Demonstration on the Leakage-Free Surface-Driven Capillary Flow of Red Dye

Authors

  • Subhadeep Mukhopadhyay

DOI:

https://doi.org/10.37591/jocc.v5i3.1505

Keywords:

SU-8, Red dye, Maskless lithography, Indirect bonding, CMOS camera

Abstract

In this work, two individual SU-8 based glass microfluidic devices are fabricated by the maskless lithography and indirect bonding technique. Commercially available red-colored food dye is used as the working liquid. Microfluidic leakage is observed between the glass lid and SU-8 based microchannel substrate due to the improper indirect bonding technique. Leakage-free surface-driven capillary flow is observed due to the proper indirect bonding technique. CMOS camera is used to capture and record each surface-driven microfluidic flow of red dye. This work will be useful to fabricate the microfluidic lab-on-a-chip systems by the negative photoresist SU-8.

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Published

2019-02-01

Issue

Vol. 5 No. 3 (2018)

Section

Articles

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