基于自发曲率模型对几种极限形状膜泡及典型相变和分裂过程的研究  

Some new limiting vesicles and typical phase transforms and abruptions processes studied using the spontaneous-curvature model

作　　者：周晓华[1] 张劭光[2] 杨继庆[1] 屈学民[1] 刘渊声[1] 王斯刚[1] 

机构地区：[1]第四军医大学数理教研室,西安710032 [2]陕西师范大学物理学与信息技术学院,西安710062

出　　处：《物理学报》2007年第10期6137-6142,共6页Acta Physica Sinica

基　　金：陕西省自然科学研究计划(批准号:2003A08)资助的课题~~

摘　　要：通过在SurfaceEvolver软件中建立一些具有多重对称性的初始形状,经逐次细分并长时间演化后,得到了几种能量很低的极限形budding形状,其参数与理论值一致.通过逐步调整参数并跟踪其演化途径,发现了一个不连续的相变和一个连续的可逆相变以及两种稳定的新形状,并且获得的海星形的两种分裂路径已被实验所证实.Through building several multi-symmetric initial shapes in Surface Evolver software, after refining them and doing a long time of evolvement step by step, we obtained some new budding vesicles with small energy whose coefficients are consistent with the theoretical values. Through changing the coefficient and scanning the direction of different shapes, we found a discontinuous phase transition and a reversible continuous phase transition and two new stable shapes. Furthermore, we obtained two kinds of starfish shaped abruption processes which have been supported by experiment.

关 键 词：生物膜泡 曲率 SURFACE Evolver 

分 类 号：Q73[生物学—分子生物学]