Lunch Seminar Series
May 26, 2017
12:00PM - 1:00PM
Cory Hall 521
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Fluorescent Kabarimide C: A novel & selective probe of actin filament free barbed ends and actin polymerization in living cells

Abstract:

Live cell fluorescence probes are powerful tools that allows subcellular visualization with both high spatial and temporal resolution, an ideal probe should be membrane permeable and specific.While most reported actin probes fail to meet all the requirements at once, we introduce a novel actin fluorescence probes that allows visualization of barbed end actin population in live cells with high specificity and selectivity, in combination with the filamentous actin visualization probe SiR-Jas, the two population of actin in live cells can be readily and differentially visualized for the first time. We have further shown several applications of the new KabC barbed end actin probe in live cell imaging.

Speaker: Dr. Shu Kan

Department of Biogenginnering, UC Berkeley

Dr. Shu Kan is a postdoctoral scholar in TBSI. She is supervised by Professor Gerard Marriott. She obtained her Ph.D. in Comparative Biochemistry from UC Berkeley in 2015.


Flexible Electret and Piezoelectret Generators for Wearable Electronics

Abstract:

Cith the rise of intelligent wearable electronics, energy harvesters converting rich but irregular mechanical energy into electricity have attracted much attention, as this method can reduce the dependence on batteries. Herein, various flexible generators based on electret and piezoelectret materials are successfully fabricated, with the fundamental working mechanism of electrostatic induction caused by the surplus charges. Specifically, the charges capturing ability of the electret and piezoelectret materials and the structure of the generators are optimized, in order to improve the output power and stability. These generators have been demonstrated the applications in mobile health care, human interaction and wireless communication, etc. These works not only offer new valuable insights, but will open up new perspectives to develop self-powered wearable devices with high properties.

Speaker: Dr. Junwen Zhong

Department of Mechanical Engineering, UC Berkeley

Dr. Junwen Zhong is a postdoctoral researcher in University of California at Berkeley. He received his B.S. degree (2011) and PhD degree (2016) from Huazhong University of Science and Technology, China. He majors in flexible generators, self-powered systems and active sensors. He has published 8 patents, 1 book chapter and over 20 papers, among which 10 papers were published as the first author. Some of his papers were published in Energy & Environmental Science, Advanced Materials, ACS Nano, and Nano Energy, with over 1200 citations. Some of his researching works have been reported by Nature Nanotechnology, Scientific American, Chemical & Engineering, News, Nano Werk as highlights