在封闭的三维活性流体中,从流转为连贯流
Kun-Ta Wu1, Jean Bernard Hishamunda1, Daniel T N Chen1
1Department of Physics, Brandeis University, 415 South Street, Waltham, MA 02453, USA.
Science (New York, N.Y.)
|March 25, 2017
概括
由微管和分子电机制成的活性液体可以在没有外部压力的情况下自主流过长通道. 这一突破使得自组织软机器能够控制流体动力学.
科学领域:
- 生物物理
- 软物质物理学
- 微流体学
背景情况:
- 流体传输对于宏观机器和微流体设备都至关重要.
- 传统的流体需要外部压力才能流动,这限制了自主系统.
- 活动物质系统为自组织的流体动力学提供了新的可能性.
研究的目的:
- 使用活性物质在一米长的道中展示自主流体.
- 建立对自组织流量的大小,速度和方向的控制.
- 调查从流向连贯流的局限性活性流体的过渡.
主要方法:
- 使用由微管和分子电机组成的活性同位素流体.
- 工程长度为一米的三维通道用于流体运输.
- 与微管束结构相关的流量特征.
主要成果:
- 在一米长的道中实现了自主流体流动.
- 建立了对流量大小,速度配置和方向的控制.
- 基于通道几何和束序的尺度不变标准控制了从流向连贯流的过渡.
结论:
- 活跃的同位体流体可以自主流动,并且可以在有限的几何体内进行控制.
- 这项研究揭示了一种新奇的非平衡过渡,
- 这项研究为设计自组织软机器铺平了道路.
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