相关实验视频
Updated: May 4, 2026

18:11
Microfluidic Chips Controlled with Elastomeric Microvalve Arrays
Published on: October 1, 2007
21.1K
基于微流体的Marangoni冲浪者无软磁性
Yu-Hsiang Lin1, Franco N Piñan Basualdo2, Venkatasubramanian Kalpathy Venkiteswaran2
1Surgical Robotics Laboratory, Department of Biomechanical Engineering, University of Twente, 7522 NB, Enschede, The Netherlands. y.lin-1@utwente.nl.
Scientific reports
|August 31, 2024
概括
这项研究引入了一种新的磁性微,用于可控制的表面活性剂释放,增强微流体推进. 这项创新可以精确控制马兰戈尼的冲浪者,进步微型机器人.
科学领域:
- 微流体学和软机器人学.
- 表面科学和界面现象.
背景情况:
- 微流体学使小型化系统能够用于机器人推进等应用.
- 由表面活性剂释放驱动的溶性马兰戈尼效应驱动微型机器人 (马兰戈尼冲浪者),但缺乏控制.
- 现有的方法缺乏对马兰戈尼冲浪者可控的表面活性剂释放.
研究的目的:
- 为马兰戈尼冲浪者开发可控制的微流体推进系统.
- 整合一个新的无磁机制与微流体进行增强的推进控制.
- 为了研究磁性微系统的性能和有效性.
主要方法:
- 开发一种利用柔性磁铁相互作用的无磁性微.
- 一个带有 4.64 mN 的力和 450 μm 的变形的膜的启动.
- 对喷嘴/扩散器流量调整器进行净流量生成的数值研究,并对流量与 actuation 频率进行调查.
主要成果:
- 成功产生了4.64mN的力和450μm的膜变形.
- 使用喷嘴/扩散器直流器演示净流量.
- 研究和描述微的流量与执行频率的关系.
- 验证系统控制马兰戈尼冲浪者运动的能力.
结论:
- 新型磁性微显著提高了微流体推进系统的可控性.
- 这种集成系统可以精确地控制马兰戈尼的冲浪者,为微型机器人和生物医学应用开辟了新的途径.
- 这项研究表明,在微流体设备中控制表面活性剂输送的可行方法.
相关概念视频
Divergence and Curl of Magnetic Field
4.5K
The magnetic field due to a volume current distribution given by the Biot–Savart Law can be expressed as follows:
4.5K
Magnetostatic Boundary Conditions
1.9K
An electric field suffers a discontinuity at a surface charge. Similarly, a magnetic field is discontinuous at a surface current. The perpendicular component of a magnetic field is continuous across the interface of two magnetic mediums. In contrast, its parallel component, perpendicular to the current, is discontinuous by the amount equal to the product of the vacuum permeability and the surface current. Like the scalar potential in electrostatics, the vector potential is also continuous...
1.9K
Capillarity in Fluid
1.6K
Capillarity describes the movement of liquid in small spaces without external forces acting on it. The capillarity is driven by surface tension and adhesive interactions between the liquid and surrounding solid surfaces. This effect is often seen in narrow tubes, porous materials, and fine particles.
Surface tension is crucial to capillarity. It results from cohesive forces between liquid molecules at the liquid-air boundary, forming a skin that resists external forces. When the capillary tube...
Surface tension is crucial to capillarity. It results from cohesive forces between liquid molecules at the liquid-air boundary, forming a skin that resists external forces. When the capillary tube...
1.6K
Bernoulli's Equation for Flow Normal to a Streamline
1.2K
Bernoulli's equation for flow normal to a streamline explains how pressure varies across curved streamlines due to the outward centrifugal forces induced by the fluid's curvature. The pressure is higher on the inner side of the curve, near the center of curvature, and decreases outward to balance these centrifugal forces.
The pressure difference depends on the fluid's velocity and radius of curvature. The pressure variation is minimal in flows with nearly straight streamlines. However, the...
The pressure difference depends on the fluid's velocity and radius of curvature. The pressure variation is minimal in flows with nearly straight streamlines. However, the...
1.2K
Steady, Laminar Flow Between Parallel Plates
1.1K
Understanding steady, laminar flow between parallel plates is essential for analyzing and designing flow in narrow rectangular channels, commonly found in various water conveyance and drainage systems. The Navier-Stokes equations govern fluid motion and are generally challenging to solve due to their nonlinearity. However, simplifications are possible in certain cases, like the steady laminar flow between parallel plates. For this scenario, we assume steady, incompressible, laminar flow.
1.1K
Couette Flow
1.4K
Couette flow represents the flow of fluid between two parallel plates, with one plate fixed and the other moving with a constant velocity. This configuration allows for a simplified analysis using the Navier-Stokes equations, which govern fluid motion under conditions of viscosity and incompressibility. For Couette flow, the assumptions include a steady, laminar, incompressible flow with a zero-pressure gradient in the flow direction. This flow type is beneficial for understanding shear-driven...
1.4K

