Particle Transportation Using Programmable Electrode Arrays
Author(s)Kua, C.H.; Lam, Yee Cheong; Rodriguez, I.; Youcef-Toumi, Kamal; Yang, C.
This study presents a technique to manipulate particles in microchannels using arrays of individually excitable electrodes. These electrodes were energized sequentially to form a non-uniform electric field that moved along the microchannel. The non-uniform electric field caused dielectrophoresis to make polarized particles move. This technique was demonstrated using viable yeast cells in a suspending medium with different conductivities. The viable yeast cells experienced positive dielectrophoresis and negative dielectrophoresis in medium conductivity of 21.5 μS/cm and 966 μS/cm respectively. The experimental results indicate that the cells can be transported in either condition using the proposed technique.
Manufacturing Systems and Technology (MST)
Dielectrophoresis, Particle Manipulations, Moving Electric Field