时间：2013年12月17日 (星期二) 上午10:00
地点：唐仲英楼 A313
题目： Manipulation of Heat and Mass Transfer at Micro/Nanoscale for Engineering Applications
报告人： Professor Deyu Li
Department of Mechanical Engineering
Vanderbilt University
Abstract:
Micro/Nanoscale heat and mass transport attracts significant attention because it involves rich physics and has extensive applications. In this talk, he will discuss their research on manipulating these transport phenomena at micro/nanoscale and some related applications.
First he will present some results they obtained on thermal transport through contacts between individual nanostructures. More specifically, he will show how van der Waals interfaces modulate energy transport. For example, they demonstrate that even at room temperature, a large portion of energy carriers (phonons) can ballistically transmit through van der Waals interfaces without being diffusely scattered, which is very different from the classical view. In addition, contact thermal resistance between carbon nanotubes show interesting diameter dependence, providing new insight into phonon transport through atomically layered materials.
In the second half of the talk, he will present a class of microfluidic valve-enabled cell co-culture platforms they developed. Through manipulating media exchange between cell populations, the platform enables novel assays to observe the dynamic process of synapse formation in the central nervous system, and to dissect the function of specific molecules in tumor angiogenesis and metastasis.
