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Cells migrating in response to external stimuli form lamellipodia, which are thin membrane protrusions supported by a mesh of linked, branched, or unbranched actin filaments. These actin filaments interact with myosin motor proteins, creating the dynamic actomyosin complex within the cytoskeleton. Contractility, or the ability to generate contractile stress, is inherent to the actomyosin complex. It helps cells detect the stiffness of the surrounding ECM and exert contractile force for...
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A Microfluidic-based Hydrodynamic Trap for Single Particles
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控制与活动的墙体粒子相互作用.

Luke Neville1,2, Jens Eggers1, Tanniemola B Liverpool1,2

  • 1School of Mathematics, University of Bristol, Fry Building, Bristol BS8 1UG, UK. luke.neville@bristol.ac.uk.

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此摘要是机器生成的。

活跃的阴性液晶对附近的磁盘施加力. 磁盘的吸引或排斥取决于主动应力和定,提供对自组装的控制.

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科学领域:

  • 软物质物理学 软物质物理学
  • 活体物质系统是什么
  • 液晶科学 液晶科学

背景情况:

  • 活体阴性液晶表现出复杂的流体动力学,由自行驱动的组成元素驱动.
  • 体颗粒和封闭表面之间的相互作用对于理解自我组织现象至关重要.

研究的目的:

  • 理论上研究在活性阴性液晶内壁附近的硬盘上起作用的有效力.
  • 探索活跃应力和定条件如何影响磁盘动态和相互作用.

主要方法:

  • 理论上确定硬盘上的有效力.
  • 在特定条件下 (靠近墙壁,缓慢流动) 导出精确的力表达.

主要成果:

  • 有效力和磁盘动力学取决于活跃的内马特性质和定条件.
  • 伸展性活力应力吸引平面固定盘;收缩性应力驱逐它们.
  • 正常固的磁盘表现出相反的行为:收缩系统中的吸引力,伸展系统中的排斥力.

结论:

  • 活跃应力和定之间的相互作用决定了盘壁相互作用.
  • 可调节的力量提供了一种机制来控制活跃的阴性合体的自我组装.