相关实验视频

Updated: Sep 17, 2025

A Microfluidic-based Hydrodynamic Trap for Single Particles

A Microfluidic-based Hydrodynamic Trap for Single Particles

Published on: January 21, 2011

毛细血管执行器的环作为陷,子和子,用于浮动颗粒

Jean Metzmacher¹, Megan Delens¹, Nicolas Vandewalle²

¹GRASP, Institute of Physics B5a, University of Liège, B4000, Liège, Belgium.

Scientific reports

|July 2, 2025

概括

双极毛细管执行器 (DCA) 控制接口上的液体斜率,以操纵小型漂浮物体. 这项技术可以在微型制造和自组装应用中精确地吸引或排斥颗粒.

科学领域:

物理物理学物理
材料科学材料科学材料科学
工程工程师工程师工程师

背景情况:

在液体-空气接口的粒子操纵是微型制造和自组装的关键.
相互作用是由粒子阴道产生的局部液体斜率决定的.

研究的目的:

引入双极毛细管驱动器 (DCA) 以按需修改液体接口斜率.
通过实验来描述DCA系统,并开发一个预测模型.

主要方法:

利用磁力和毛细血管扭矩平衡来控制DCA.
在改变液体斜率方面,实验性地描述了DCA的性能.
开发了一个模型来描述斜率修改能力.

主要成果:

证明DCAs可以吸引或排斥各种浮动粒子 (大小,形状,可湿性).
展示了一个概念验证系统,其中一个环中有六个DCA.
环系统作为毛细血管陷,子和子起作用.

结论:

DCA提供了一种新的方法来积极控制液体界面上的粒子相互作用.
这项技术在中尺度和微型制造中具有潜在的应用.
开发的模型有助于理解和设计基于DCA的系统.

更多相关视频

Microfluidic Pneumatic Cages: A Novel Approach for In-chip Crystal Trapping, Manipulation and Controlled Chemical Treatment

Microfluidic Pneumatic Cages: A Novel Approach for In-chip Crystal Trapping, Manipulation and Controlled Chemical Treatment

Published on: July 12, 2016

Nanomanipulation of Single RNA Molecules by Optical Tweezers

Nanomanipulation of Single RNA Molecules by Optical Tweezers

Published on: August 20, 2014

相关概念视频

Rise of Liquid in a Capillary Tube

Rise of Liquid in a Capillary Tube

When very thin cylindrical tubes, called capillaries, are dipped in a liquid, the liquid rises or falls in the tube compared to the surrounding liquid. This phenomenon is called capillary action. Capillary action occurs due to the combination of two opposing forces: the cohesive forces of the liquid, which cause it to stick to itself and form a rounded shape, and the adhesive forces between the liquid and the walls of the container, which cause the liquid to be attracted to the container walls.