主讲人：李峣博士（瑞士提契诺大学）

题目：Shape transformations of vesicles induced by swim pressure

时间：2021年02月27日上午10：00

会议ID：（腾讯会议）961 594 034

报告摘要：

While the behavior of vesicles in thermodynamic equilibrium has been studied extensively, how active forces control vesicle shape transformations is not understood. In this talk, I will present our recent study of the shape behavior of vesicles containing active Brownian particles by combining theory and simulations. We show that the combination of active forces, dimensionality and membrane bending free energy creates a plethora of novel phase transitions. At low swim pressure, the vesicle exhibits a discontinuous transition from a spherical to a prolate shape, which has no counterpart in two dimensions. At high swim pressure it exhibits stochastic spatio-temporal oscillations. In the end, I will further discuss how these findings will help to understand living and synthetic systems, e.g. cytoskeleton and bacteria.

个人简介：

Yao Li is a postdoc in Università della Svizzera italiana. He obtained PhD from Tsinghua University in 2014. His research interests focus on soft matter and statistical physics.