Active Curved Polymers Form Vortex Patterns on Membranes
Active Curved Polymers Form Vortex Patterns on Membranes
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DOI：
10.1103/physrevlett.116.178301
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发表时间：
2016-04-25
影响因子：
8.6
通讯作者：
Frey, Erwin
中科院分区：
文献类型：
--
作者：
Denk, Jonas;Huber, Lorenz;Frey, Erwin
最近的FtsZ聚合物的体外实验显示，自组织成了不同的动态模式，包括让人想起细菌Z环的结构。我们通过布朗动力学模拟和Boltzmann方法将FtsZ聚合物模拟为沿着手性环形路径运动的活性粒子。我们的两个概念上不同的方法指向一个通用的阶段行为。在中等粒子密度下，我们发现自组织形成包括闭合环在内的涡旋结构。此外，我们还证明了花样形成初期的动力学可用广义复Ginzburg-Landau方程来描述。
Recent in vitro experiments with FtsZ polymers show self-organization into different dynamic patterns, including structures reminiscent of the bacterial Z ring. We model FtsZ polymers as active particles moving along chiral, circular paths by Brownian dynamics simulations and a Boltzmann approach. Our two conceptually different methods point to a generic phase behavior. At intermediate particle densities, we find self-organization into vortex structures including closed rings. Moreover, we show that the dynamics at the onset of pattern formation is described by a generalized complex Ginzburg-Landau equation.