SUPA, School of Physics and Astronomy, University of Edinburgh, Peter Guthrie Tait Road, Edinburgh EH9 3FD, United Kingdom.
Phys Rev Lett. 2018 Jun 22;120(25):258001. doi: 10.1103/PhysRevLett.120.258001.
Inspired by recent experimental observations of patterning at the membrane of a living cell, we propose a generic model for the dynamics of a fluctuating interface driven by particlelike inclusions which stimulate its growth. We find that the coupling between interfacial and inclusions dynamics yields microphase separation and the self-organization of traveling waves. These patterns are strikingly similar to those detected in experiments on biological membranes. Our results further show that the active growth kinetics do not fall into the Kardar-Parisi-Zhang universality class for growing interfaces, displaying instead a novel superposition of scaling and sustained oscillations.
受近期活体细胞膜图案形成的实验观察启发，我们提出了一个由颗粒状内含物驱动的波动界面动力学的通用模型，该内含物刺激界面生长。我们发现界面和内含物动力学之间的耦合导致微相分离和传播波的自组织。这些模式与生物膜实验中检测到的模式非常相似。我们的结果还表明，活性生长动力学不属于生长界面的 Kardar-Parisi-Zhang 普适类，而是表现出一种新颖的标度和持续振荡的叠加。
