新闻与活动 活动信息

Chemistry Seminar | Lauren Zarzar: Self-organization and behavior of non-equilibrium active droplets

时间

2024年7月9日(周二)
14:00-15:30

地点

西湖大学云谷校区E10-304

主持

西湖大学程建军教授与张鑫教授

受众

全体师生

分类

学术与研究

Chemistry Seminar | Lauren Zarzar: Self-organization and behavior of non-equilibrium active droplets

时间:202479日(周二)14:00-15:30

Time: 14:00-15:30, Tuesday, July 9, 2024

主持人:西湖大学程建军教授与张鑫教授

Hosts: Prof. Jianjun Cheng and Prof. Xin Zhang, Westlake University

地址:西湖大学云谷校区E10-304

Venue: E10-304, Yungu Campus, Westlake University

讲座语言:英文

Lecture Language: English


Prof. Lauren Zarzar

Department of Chemistry and Department of Materials Science and Engineering, 

The Pennsylvania State University


主讲人/Speaker:

Lauren is a professor at Penn State with appointments in the Department of Chemistry and the Department of Materials Science and Engineering. Prior to Penn State, Lauren earned a B.A. in chemistry and a B.S. in economics from the University of Pennsylvania, a Ph.D. in chemistry from Harvard University (with Joanna Aizenberg) and completed a postdoc at MIT (with Tim Swager). Some of her recognitions include the Packard Fellowship for Science and Engineering, Sloan Research Fellowship, and Camille Dreyfus Teacher-Scholar Award. Her group’s research interests include the study of colloidal active matter, laser direct writing of nanomaterials, and micro-optics.


讲座摘要/Abstract:

Life is sustained by exploiting nano/microscale soft structures and interfaces to direct the non-equilibrium chemical processes that govern motion, organization, and growth. Fundamentally understanding how materials self-organize under dissipative conditions in synthetic systems, such as chemically minimal colloids, may provide insight into the matter-to-life transition. I will present our recent work aimed at understanding the non-equilibrium properties of emulsions and liquid interfaces, including the chemotactic motions of droplets, solubilization mechanisms, and emergent collective phenomena. I will discuss chemomechanical frameworks for generating oil-in-water droplet behaviors like self-propulsion, attraction/repulsion, and non-reciprocal interactions (e.g. chasing) of tunable strength and directionality. The interfaces present in the emulsion, the “species” of droplet present, and the structure of complex droplets, is observed to be critical to active behaviors and self-organization. I will propose ideas for how the non-equilibrium transport at liquid interfaces may play a role in governing the active behaviors of solubilizing droplets. We believe that the study of such active solubilizing droplets provides a means to both uncover a chemically-tunable platform for probing active matter but also contributes to fundamental understanding of how fluid phases and interfaces behave when far from equilibrium.


讲座联系人/Contact:

理学院,梁子微,邮箱:liangziwei@westlake.edu.cn

工学院,郑苏轩,邮箱:zhengsuxuan@westlake.edu.cn

School of Science, Ziwei Liang, Email: liangziwei@westlake.edu.cn

School of Engineering, Suxuan Zheng, Email: zhengsuxuan@westlake.edu.cn