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Notice of Lectures from Guiren Wang
Publisher:赵宇明  Time2016-06-15 View:10

Invited by School of Mechatronics Engineering and School of Energy Science and Engineering, Professor Guiren Wang in the Department of Mechanical Engineering and Biomedical Engineering Program, University of South Carolina, Columbia, South Carolina, USA will give lectures in Hit.

Time : 9:30 am—11:00 am on June 14th

Place: Room 619 in Power House

Dr. Wang with a   multidisciplinary background, is currently an Associate Professor in the   Department of Mechanical Engineering and Biomedical Engineering Program,   University of South Carolina, Columbia, South Carolina, USA. Dr. Wang received   his PhD. from Technische Universität Berlin. He was a postdoctoral research   fellow in Stanford University. Currently his research interests include   nano/microfluidics and biochip, super-resolution far field nanoscopy based on   Stimulated Emission Depletion (STED), early cancer detection,   nano/microfabrication, fluorescence detection, turbulent and mixing,   etc.

TitileUltrahigh spatiotemporal Resolution   Optical Measurement and Microfluidics Applications

As a   multidisciplinary and new field, micro/nanofluidics based lab-on-a-chip is   attracting interests of many scientists and engineers from various areas. In   order to develop novel microfluidic device, some fundamental issues (physical,   chemical and biological properties) in interfacial flows have to be addressed   and measured with nanoscale resolution. However, current measuring techniques   have mostly spatial resolution on the order of a few micrometers using micro-  or  nanoparticles as tracers, whose velocity in many cases is unfortunately   different from that of fluids. Here we introduce a novel small and neutral   molecules as the tracer, i.e. Laser Induced Fluorescence Photobleaching   Anemometer (LIFPA), to measure flow velocity in micro- and nanochannels. We  also  developed a far field optical nanoscopy based on stimulated emission  depletion  (STED) with femto lasers. Inteagrated with STED, LIFPA has potential  to measure  interfacial flows, such as slip flow with unprecedented high spatial  (~70nm) and  temporal resolution (5µs) resolution in micro/nanofluidics. Femto  laser can  enhance the performance of LIFPA by increasing its dynamic range. We  also use  STED for nanofabrication of nanostructures to overcome diffraction  limit in  photolithography. Finally we also introduce our microfliudic cell  sorter based  on dielectrophoresis for cancer cell separation.