没有固体壁的液体流量和控制
Peter Dunne1,2, Takuji Adachi1,3, Arvind Arun Dev2
1Université de Strasbourg, CNRS, ISIS, Strasbourg, France.
Nature
|May 8, 2020
概括
研究人员开发了新的液体在液体中的流体通道,避免固体墙壁的自我愈合,非堵塞系统. 这种磁场稳定的方法可以轻轻地有效地运输像全人血液这样的微妙液体,
科学领域:
- 微流体学
- 流体动力学
- 材料科学
背景情况:
- 微型流体电路面临着固体通道壁的挑战,包括流速限制和污染.
- 现有的减轻墙壁相互作用的方法 (例如涂层,电湿) 有局限性.
- 液滴微流体和流避免固体壁,但需要连续流动液体.
研究的目的:
- 开发一种新的流体通道系统,
- 创建自我愈合,不堵塞,和防污染的微流体通道.
- 为了证明精确的流量控制和温和的液体运输,特别是在微妙的生物样本.
主要方法:
- 水性液体通道被一个不可混合的磁性液体所包围.
- 一个四极磁场稳定了液体中的液体接口,创造了流体通道.
- 使用外部永久磁铁进行磁静电,控制液体流动而无需物理接触.
主要成果:
- 液体中的液体道具有自我愈合,不堵塞和抗污染的特性.
- 磁静电允许有效的门,分裂,合并和液体.
- 与周周抽血相比,全人血液的运输显示出血液溶解的数量有所减少.
结论:
- 这种液体在液体中的方法为传统的微流体道提供了更好的替代方案,特别是对于微妙的液体.
- 该系统可以在微小尺度上实现精确的流量控制和轻松的运输,而无需高压.
- 潜在的应用包括先进的微流体电路和改善生物流体的处理.
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