Curved trajectories of actin-based motility in two dimensions

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/104453

Title:	Curved trajectories of actin-based motility in two dimensions
Authors:	陳宣毅;Wen, Fu-Lai;Leung, Kwan-tai;Chen, Hsuan-Yi
Contributors:	理學院物理學系
Keywords:	64.60.-i;82.40.Bj;87.17.Jj
Date:	2012-05-01
Issue Date:	2026-04-23 11:50:33 (UTC+8)
Publisher:	EPS, SIF, EDP Sciences and IOP Publishing
Abstract:	摘要： Recent experiments have reported fascinating geometrical trajectories for actin-based motility of bacteria Listeria monocytogenes and functionalized beads. To understand the physical mechanism for these trajectories, we constructed a phenomenological model to study the motion of an actin-propelled disk in two dimensions. In our model, the force and actin density on the surface of the disk are influenced by the translation and rotation of the disk, which in turn is induced by the asymmetric distributions of those densities. We show that this feedback can destabilize a straight trajectory, leading to circular, S-shape and other geometrical trajectories observed in the experiments through bifurcations in the distributions of the force and actin density. The relation between our model and the models for self-propelled deformable particles is emphasized and discussed. 出版者： EPS, SIF, EDP Sciences and IOP Publishing 出版日期： 2012-05 出處： Europhysics letters, 2012-05, Vol.98 (3), p.38005 資源來源： Institute of Physics Journals 識別號： ISSN: 0295-5075 識別號： EISSN: 1286-4854 識別號： DOI: 10.1209/0295-5075/98/38005
Appears in Collections:	[Department of Physics] journal & Dissertation

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