Thu, Feb 10, 2011 @ 01:00 PM - 02:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Prof. Eric P. Y. Chiou, UCLA
Talk Title: Photothermal Excitation for Ultrafast Micro and Nanofluid Systems and Biomedical Applications
Abstract: Short pulse lasers have broad applications across broad fields including optical communication, imaging, laser machining, laser surgery, and recently in actuating microfluid and nanofluid devices. It has been shown that a tightly focused laser beam is capable of inducing localized hot plasma for rapid heating and creating cavitation bubbles that expand at high speed in the micro and nanometer scale. Through proper engineering design, such ultrafast actuation mechanism can be spatially patterned and synchronized in time domain to achieve novel microfluidic functions such as ultrafast microfluidic cell sorting, droplet generation, and single cell encapsulation. By coupling this photothermal effect with metallic nanostructures, the threshold energy for exciting cavitation bubbles can be greatly reduced and the bubble explosion pattern can be controlled in the nanometer scale. This enables a novel photothermal nanoblade that permits patterned cutting of 3D fragile mammalian cell membranes for large cargo delivery into mammalian cells with high efficiency and high cell viability.
Biography: Prof. Eric P. Y. Chiou received his Ph.D. degree in Electrical Engineering and Computer Sciences Department from the University of California at Berkeley in 2005. He received his M.S. degree in Electrical Engineering Department in the University of California at Los Angeles and B.S. degree in Mechanical Engineering Department from National Taiwan University in Taiwan in 1998. He joined the Mechanical and Aerospace Engineering Department at the University of California at Los Angeles in 2006. His research interest is Optical MEMS, BioMEMS, laser manufacturing, and biophotonics. He has received the NSF CAREER award in 2008.
Host: Prof. Michelle Povinelli
More Info: http://ee.usc.edu/news/seminars/photonics/
Audiences: Everyone Is Invited
Contact: Jing Ma
Event Link: http://ee.usc.edu/news/seminars/photonics/