题目⛵️：Investigating Water Dynamics at the Molecular Interfaces Using Dynamic Vibrational Spectroscopy 报告人：Wei Zhuang 教授 主持人🦀：Konstantin E. Dorfman 教授 时间🧍♂️：9月23日10:00 地点：闵行校区光学大楼A408会议室 主办单位🧑🏽🎨：精密光谱科学与技术国家重点实验室
报告人简介： 庄巍研究员于2000年本科毕业于中国科学技术大学少年班，并于2007年在美国加州大学Irvine分校获博士学位，师从国际著名化学物理学家Shaul Mukamel教授🎧。2007年至2009年，在美国加州劳伦斯伯克利国家实验室的David Chandler教授研究组从事博士后研究。2010年，他开始在中国科学院大连化学物理研究所从事独立的科研。在2016年开始🤾🏼♂️，他在中国科学院福建物质结构研究所任研究研究并从事研究工作。他的研究兴趣包括统计物理和理论非线性光谱学，也更专注于离子效应，在分子界面的水动力学这类溶液体系的超快光谱的理论研究。 报告内容👨❤️💋👨： Our understanding about the state, structure and dynamics of water in the confined environments such as cytosol or electrolyte of aqueous battery remain largely limited. Dynamic vibrational spectroscopy techniques are among the most insightful tools for probing the interfacial water dynamics. The interpretation of the spectroscopy signals for these complex molecular systems, on the other hand, remains a non-trivial issue which can benefit from the theoretical modeling. We’ve therefore picked a series of typical ions, amphiphilic small molecules as well as proteins and carefully studied the water dynamics at their interfaces and the reflections on dynamic vibrational spectroscopy. Theoretical approaches including cyclic Markovian chain model are used to understand the apparently abnormal water behaviors therein. Based on these theoretical simulations, we attempt to address several important issues about the solute effect on interfacial water, including 1) ion specificity in their effects on water dynamics, 2) spatial range of solute effects, 3) micro-heterogeneity in the solutions and 4) coupling of water-protein dynamics in the jammed intercellular spaces. |
