Experimental Studies on the Surface-Driven Capillary Flow of Dyed Water in Multistage Microfluidic Bends

Abstract

Abstract
A single three-stage and a pair of two-stage microfluidic bends are fabricated. SU-8 as negative photoresist is used to fabricate the stamp by maskless lithography and diamond like carbon (DLC) coating. Microchannel structures are fabricated using polymethylmethacrylate (PMMA) by hot embossing lithography. Direct bonding technique is used to fabricate the leakage-free sealing in microfluidic bends. The leakage-free surface-driven capillary flow is recorded by CMOS camera. This work will be useful to fabricate the multistage microfluidic blood filters for bioengineering applications.

Keywords: Multistage, bend, maskless lithography, hot embossing lithography, direct bonding, capillary flow

Cite this Article

Subhadeep Mukhopadhyay. Experimental Studies on the Surface-Driven Capillary Flow of Dyed Water in Multistage Microfluidic Bends. Recent Trends in Fluid Mechanics. 2017; 4(3): 29–34p.