Three-Wing Optical Mixer Design, Fabrication and Application to a μ-TAS

Abstract

Optically driven 3-wing mixers are designed, fabricated and applied to liquid mixing in a microchannel. Three-wing mixers are easily fabricated into the desired shape by photolithography based on a large wing angle, and they are stable against trapping and rotation. Two-liquid mixing is visualized by the variation in milk fat colloid density, and velocity vectors are obtained through a stable and fast rotation rate of 500 rpm, even in a flow of 67 μm/s.