专用集成电路与系统国家重点实验室
讲座信息

Electric Manipulations on an Electro-Microfluidic Platform
通用電控微流體平台

报告人:Shih-Kang Fan (Department of Mechanical Engineering, National Taiwan University)
时  间:2013年8月12日(周一)10:00-11:00
地  点:邯郸校区微电子学楼B213会议室

Abstract:
Manipulating liquids and particles therein is an essential task in microfluidics. Among all the manipulations, the electric means is a promising one with the features of compact system size, simple device fabrication and packaging because external liquid pumps and physical microchannels are not necessary. In this presentation, two important electric manipulations are introduced, including electrowetting-on-dielectric (EWOD) and dielectrophoresis (DEP). On the one hand, EWOD efficiently varies the contact angle of aqueous droplets or droplets with sufficient conductivity/permittivity by voltage application across a dielectric layer between an electrode and the liquid droplet. It has been widely studied in droplet actuations for the applications of droplet-based lab-on-a-chip, liquid lenses, and displays. On the other hand, DEP drives polarizable particles suspended in a liquid medium by non-uniform electric fields as well as pumps liquids with a high permittivity toward the high electric field regions with a low permittivity. Based on the integration of EWOD and DEP, we have recently developed several functions demonstrating that the electric manipulations are general for microfluidics. In the presented devices, electric manipulations would be applied to (1) objects on different scales (droplets and particles), (2) droplets with different conductivities (water and oil droplets), and (3) liquids in different formations (discrete droplets and continuous virtual microchannels).

Bio:
Shih-Kang Fan received the B.S. degree from National Central University, Taiwan, in 1996, the M.S. and Ph.D. degrees from University of California, Los Angeles (UCLA), USA, in 2001 and 2003, respectively.
He joined the faculty at the Institute of Nanotechnology, National Chiao Tung University (NCTU), Taiwan, as Assistant Professor in 2004 and was promoted to Associate Professor in 2009. He was with the Department of Materials Science and Engineering and the Department of Mechanical Engineering at NCTU between 2010 and 2012. Since 2012, he has worked as Associated Professor in the Department of Mechanical Engineering at National Taiwan University (NTU), Taiwan. Dr. Fan is the recipient of the two most prestigious young investigator awards in Taiwan, including 2011 National Science Council Ta-You Wu Memorial Award and 2012 Academia Sinica Research Award for Junior Research Investigators. His research interests focus on electric manipulations of microfluidics for lab-on-a-chip and electro-optical applications.

 
 
 
 

 

Copyright© 2003-2018 复旦大学微电子学院
联系我们