Internal states of active inclusions and the dynamics of an active membrane
Internal states of active inclusions and the dynamics of an active membrane
复制标题
DOI：
10.1103/physrevlett.92.168101
复制
发表时间：
2004-04-23
影响因子：
8.6
通讯作者：
Chen, HY
中科院分区：
文献类型：
--
作者：
Chen, HY
本文提出了一个含脂类和双态活性包体的双组分流体膜的理论模型。该模型预测了几个非平衡形态转变。(i)夹杂物的主动泵浦可以驱动长波长波动不稳定性。(ii)夹杂物的主动激发可以诱导高曲率激发夹杂物的聚集。(iii)活性包合物构象变化可以产生有限大小的结构域。由此产生的稳态域的大小取决于包含活动。对于稳定的膜，在长波长范围内的高度波动谱与以前忽略包体内部状态的研究相似。
A theoretical model of a two-component fluid membrane containing lipids and two-state active inclusions is presented. This model predicts several nonequilibrium morphology transitions. (i) Active pumping of the inclusions can drive a long-wavelength undulation instability. (ii) Active excitation of the inclusions can induce aggregation of high-curvature excited inclusions. (iii) Active inclusion conformation changes can produce finite-size domains. The resulting steady state domain size depends on inclusion activities. For a stable membrane the height fluctuation spectrum in the long-wavelength limit is similar to previous studies which neglected the inclusion internal states.