2017.02.16加州大学洛杉矶分校Prof. Yu Huang

来源：null   发布时间： 2017-02-13  

无机功能材料组邀请学术报告
Molecular Specificity Guided NanoCrystal Growth, Assembly and Catalysis
报 告 人：Prof. Yu Huang (加州大学洛杉矶分校)
报告时间：2017年2月16日（星期四） 16:00-17:00
报告地点：过程大厦308会议室
主 办：无机功能材料课题组
报告人简介：Professor Huang receives her Ph.D in physical chemistry from Harvard University and her B.S. in chemistry from University of Science and Technology of China. At UCLA she explores the unique technological opportunities that result from the structure and assembly of nanoscale building blocks. Focusing on the molecular level, she conducts research to unravel the fundamental principles governing nanoscale material synthesis and assembly; and utilizes such principles to design nanostructures and nanodevices with unique functions and properties to address critical challenges in electronics, energy science and biomedicine. Recognitions she received include the World’s Top 100 Young Innovators, the Sloan Fellowship, the PECASE (Presidential Early Career Award in Science and Engineering), DARPA (Defense Advanced Research Projects Agency) Young Faculty Award and the NIH (National Institute of Health) New Innovator Award.
报告简介：Material formation in nature is precisely controlled in all aspects from crystal nucleation, growth to assembly to deliver superior functions. Specific biomolecule-material interactions have been hypothesized to play important roles in these processes. Proteins, polymers and small molecules have been extensively explored to replicate the degree of control in material formation in vitro and for nonbiogenic materials. However, the organic-inorganic interfacial interaction is still far from being understood which hinders the further advancement of biomimetic material formation. In this talk I will share our efforts on decoding the myth of biomolecular specificity to material surface and their roles in controlling crystal nucleation and growth. The selection of facet specific short peptides and their abilities in guiding predictable morphology control of Pt nanocrystals will be first demonstrated. Then detailed experimental and theoretical studies on binding mechanism will be discussed. Based on mechanistic understanding, we designed small molecules bearing molecular signature for facet specific adsorption to modulate the nucleation/growth of the Pt nanocrystals to deliver the expected nanostructures and functions. At the end of talk I will share our recent research on improving catalytic functions of nanocrystals through synthetic design.