Leakage-Free Microfluidic Flow of the Dyed Aqueous Ethanol in a single SU-8 based Glass Microfluidic Device Fabricated by the Selected Microfabrication Technologies

Abstract

In this work, a single SU-8 based glass microfluidic device is fabricated by the maskless lithography and indirect bonding technique. A CMOS camera catching 25 frames per second with a corresponding time-scale resolution of 0.04 second is used to record the surface-driven microfluidic flow. Dyed aqueous ethanol (80% dyed water, 20% ethanol) is prepared to be used as working liquid. A surface-driven microfluidic flow of the prepared working liquid is recorded in leakage-free condition. In future, this work will be useful in microfluidics related different bioengineering applications, for example, fabrication of the SU-8 based microfluidic laboratory-on-a-chip systems.

Keywords: Microfluidic Flow, Ethanol, SU-8, Maskless lithography, Micropillar.