集群诱导在活跃的合体中,在oretic和osmotic推进之间切换
Dolachai Boniface1, Sergi G Leyva1,2, Ignacio Pagonabarraga1,2
1Departament de Física de la Matèria Condensada, Universitat de Barcelona, 08028, Barcelona, Spain.
Nature communications
|July 6, 2024
概括
活跃的体浮游艇表现出可调节的推进力,通过增加被动,从扩散性化过渡到扩散性化. 水力动力流和光/透效应决定了它们的动力.
科学领域:
- 体科学是一种体科学.
- 活动物质物理学 活动物质物理学
- 软物质动力学 软物质动力学
背景情况:
- 由化学反应驱动的活性粒子被广泛研究为其非平衡物理和应用.
- 最近的研究集中在含有活性和被动颗粒的混合物的复杂动力学上.
研究的目的:
- 为了研究由催化和被动颗粒组成的活性体的推进机制.
- 探索多个被动对这些活跃的集体动力学和自我推进的影响.
主要方法:
- 使用光激活化学分离来制造活性合体.
- 对集群推进机制的实验观测.
- 使用洛伦茨反向定理进行理论分析,以建模水力动力流和透效应.
主要成果:
- 随着被动的数量增加,活跃的体将从扩散性转变为扩散性.
- 在考虑通过基质的扩散性气体反应的水力动力流时,在较大的集群中出现了自我推进.
- 和透效应之间的相互作用决定了这些活跃的动态.
结论:
- 这项研究揭示了基于其结构组成的活体体木中可调节的推进机制.
- 强调了水力动力流和透效应在活性催化系统中的关键作用.
- 提供了对管理复杂活性物质系统的基本物理学的见解.
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