11月4日周三卢青教授学术讲座通知
主讲人：加州大学Merced分校 卢青教授 卢青教授主要从事新能源相关研究，欢迎相关老师、同学参与卢教授交流。
Jennifer Lu is one of the first three faculty members who established the Materials Science and Engineering program at UC Merced ‐‐ Californiaʹs newest research university. Prior to joining UC Merced, she acquired ten years industry experience at IBM and Agilent Technologies. She holds 20 patents related to device fabrication, and consistently publishes her work in high impact factor journals. She was a recipient of the DARPA Young Investigator award. She was an invited participant in the Frontiers of Science and Engineering workshop co‐sponsored by NAE, NAS, and the Brazilian Academy of Sciences. She serves as the Center Director for Merced NAnomaterials Center for Energy and Sensing (MACES) sponsored by NASA.
时间：11月4日（周三）下午1:30 地点：实验一楼二楼大会议室
讲座介绍：
CreatingNewEnergy Transduction Material Platforms
JenniferLu
University of California at Merced
The main research theme of Prof. Lu’s functional nanomaterial lab is to rationally design, synthesize and fabricate high‐performance transducer material platforms for energy conversion, storage, artificial intelligence and life science. In this talk, she will discuss the following three research thrusts.
Her lab has designed consistent and reproducible 3D carbon scaffolds that can maintain their porous architecture during down-stream processes (e.g. acid treatment and surface functionalization) for maximum mass and electron transport. Currently new surface functionalization strategies are being developed for green energy storage (e.g. aqueous-based batteries for load leveling) and for green energy conversion (e.g. electrocatalysis of the oxygen reduction reaction, a key process for polymer electrolyte membrane fuel cells).
Her lab has revealed a new sub-molecular switch, a dibenzocyclooctadiene (DBCOD), a hinge, which consists of a flexible eight‐membered ring connecting two rigid phenyl rings. Like proteins, it can undergo a conformational change from twist‐boat to chair, using a low‐energy stimulus such as near infrared. We have demonstrated that a polymer system that contains a small amount of DBCODs without any processing optimization exhibits an anomalous giant thermal contraction. This thermal contraction value isabout 10 times greater than the second best reported system. The discovery of this new submolecular switch opens a pathway to create low-thermal expansion polymers and enable the development of low-energy driven micro- and nano-actuators. It also offers a means for thermal waste harvesting.
Her Lab is also creating a dynamic scaffold that can deliver spatially and temporally defined mechanical forces onto cells. This new platform is comprised of (a) a thick bottom layer of a near infrared mechanoresponsive nanocomposite of poly(N‐isopropylacrylamide) and few‐walled carbon nanotubes, and (b) a thin cell‐seeding top layer of collagen functionalized poly(acrylic acid)‐co‐poly(N‐isopropylacrylamide) that interpenetrates into the bottom layer. We have demonstrated that human fetal hepatocytes seeded on this bilayer change their shapes in response to near infrared stimulation with no obvious detrimental effect on cell viability. To the best of our knowledge, this is the first demonstration of a cell seeding platform that can impose spatiotemporal mechanical forces onto cells.