PARTICLE SEPARATION BY EMPLOYING NON-UNIFORM ELECTRIC FIELDS, TRAVELING-WAVE ELECTRIC FIELDS AND INCLINED GRAVITY

摘要

In this study, we present the methods of the particle separation by employing electrokinetic phenomena (dielectrophoresis (DEP) and traveling-wave electroosmosis (TWEO)) and the inclined gravity. The methods can separate particles of same sign DEP. However, it is very difficult to separate particles on a plane electrode. To cope with this problem, we create the "Bottle neck Fork-trace electrode (BF electrode)" for separation of all particles in the chamber. Polystyrene beads, glass beads, yeast cells and barium titanate beads in NaCl solutions were separated by this electrode.