Generalized dielectrophoresis - a non-contact way to exert force and torque to particles and cells
Speaker:Prof. U LEI
Institute of Applied Mechanics
National Taiwan University
Date & Time:3 Jul 2013 (Wednesday) 10:00 - 12:00
Organized by:Department of Electromechanical Engineering


Generalized dielectrophoresis is an effective tool for particle manipulation and characterization, even down to the level of nano-sized objects such as carbon nanotube, DNA, proteins and viruses, as it can exert force and torque to a particle in a non-contact manner. All the disciplines of generalized dielectrophoresis are originated from the interaction of an applied electric field with its polarization effect on the particle, and can be studied systematically in a unified approach under electrostatics. An overview of the theory will be discussed first from the view point of mechanics, following a brief introduction of the subject. Various engineering and biological applications (particular for the human cells) will be presented next, and finally, the talk will be concluded by proposing some potential research topics.


U. Lei studied in Ricci primary and high school, Macau, for ten years. He completed his undergraduate study at National Taiwan University (Mechanical Engineering) in 1979, and graduate study at University of Minnesota (MS in aerospace engineering) in 1982 and University of California at Berkeley (PhD in Mechanical engineering) in 1985. He is a faculty member at the Institute of Applied Mechanics, National Taiwan University, since 1985, and became a professor since 1994. His research interest is in fluid mechanics and two-phase suspension flow. He switched some efforts to microfluidics and generalized dielectrophoresis since 2003, and the talk today is based mainly on the work done by him and his students for the past ten years.