报告题目：Molecular Specificity Guided NanoCrystal Growth, Assembly and Catalysis
Department of Materials Science and Engineering, University of California, Los Angeles, CA 90095-1595, http://yhuang.seas.ucla.edu
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. These studies open up opportunities in understanding the molecular details of inorganic-organic interface interaction, which can one day lead to the development of a library of molecular functions for biomimetic materials design and engineering.
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.
黄昱教授，1999年本科毕业于中国科学技术大学，2003年博士毕业于哈佛大学，同年在劳伦斯-利弗莫尔国家实验室进行博士后研究。2006年就职于加州大学洛杉矶分校，现任教授、博士生导师、加州纳米研究所研究员。黄昱教授通过在分子水平上的研究，揭示了控制纳米材料的合成与组装的基本原理，并利用这些原则来设计具有独特的功能和特性纳米材料和纳米器件，解决了在电子、能源科学和生物医学领域的一些关键科学问题。黄昱教授在Science、Nature、Nature Mater.、Nature Nanotechnol.、Nature Chem.、Nature Commun.、PNAS、J. Am. Chem. Soc.、Angew. Chem. Int. Ed.等国际顶尖杂志发表研究论文100余篇，平均引用率超过180/篇。近年来，在纳米催化剂的制备及其催化性能调控方向有许多重大发现，在Nature、Science等顶尖学术刊物发表多篇论文；并先后获得世界100强的年轻的创新者奖、斯隆奖、美国总统青年科技奖、国防高等研究计划署青年教授奖、美国国立卫生研究院创新奖和Kavli奖。