力学系与湍流国家重点实验室学术报告6.28 (报告人 :Dr. Hao Lin)

发布时间: 2010-06-21 12:13:00  
 SEMINAR              SERIES
     北京大学工学院     力学与空天技术系
 
    湍流与复杂系统国家重点实验室
 
题目:Electric Field Mediated Transport in Lab-on-a-chip and Biological Systems
 
报告人  Dr. Hao Lin
Assistant Professor
Mechanical and Aerospace Engineering, Rutgers University
 
 
报告内容摘要
During the past decade, electric-field-mediated transport has been widely leveraged in fluidic and biological systems to enable novel functionalities and spawn technological innovations.  The strong electromechanical coupling of the electric field and electrolyte solution in these applications often leads to new and complex flow behavior which challenges fundamental understanding and prediction capability.  In this work I will explore such phenomena in both lab-on-a-chip and biological systems.  In the first, I will demonstrate the basics of electrokinetic (EK) and electrohydrodynamic (EHD) flows, and that we can accurately predict these phenomena with an appropriate framework, the Taylor-Melcher leaky dielectric model.  In the second, such model is extended to study electroporation-mediated molecular delivery.  In this latter technology, the electric field is used to transiently permeabilize the cell membrane, such as to deliver active molecules into the intracellular compartment. The objective of this study is to identify the EK mechanisms involved in molecular delivery, and to use fundamental understanding and prediction capability to improve this promising technology.
 
 
 
主持人:谭文长  教授
时  间:6月28日(周一)下午3:00
地  点:力学楼434会议室
 
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