Analysis of Microscale Transport for BioMEMS
C. D. Meinhart, M. Sigurdson & D. Tretheway
Micron-resolution Particle Image Velocimetry (micro-PIV) is used to measure fluid motion in 30 x 300 micron channels. The results indicate that the no-slip boundary condition may not necessarily hold for hydrophobic surfaces in micro and nanochannels. Micro-PIV is also used to measure AC electrokinetic flow. Microscale mixing can be induced by precisely controlled 20 micron vortices. Finite element simulations are used to show that these vortices can be used in Bio-MEMS to enhance receptor/ligand binding on functionalized surfaces by a factor of four to six.