活性囊泡的阿米巴样游动
Amoeboid swimming of active vesicles
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中文总结 AI 辅助
研究弱放气活性囊泡形状动力学与迁移，通过局部膜不可压缩性及小过剩面积假设分析其在自由空间的耦合动力学，依活性强度和频率，囊泡呈现多种动力学状态。
中文摘要 AI 辅助
我们研究了由直接作用于膜或通过细胞骨架传递的过程驱动的弱放气活性囊泡的形状动力学和迁移。对于无力的囊泡，局部膜不可压缩性抑制刚体平移，因此迁移源于随时间变化的形状变形。假设小的过剩面积能够对自由空间中的耦合变形和迁移动力学进行系统分析。根据活性的强度和频率，囊泡表现出多种动力学状态。
英文摘要
We investigate the shape dynamics and migration of weakly deflated active vesicles driven by processes acting either directly in the membrane or transmitted by the cytoskeleton. For a force-free vesicle, local membrane incompressibility suppresses rigid-body translation, so that migration arises from time-dependent shape deformations. Assuming small excess area enables a systematic analysis of the coupled deformation and migration dynamics in free space, i.e. in the absence of substrate adhesion or confinement. Depending on the strength and frequency of the activity, the vesicle exhibits several dynamical regimes, including synchronized oscillations, quasiperiodic shape changes, transitions between non-propelling and propelling states, and intermittent motion.
