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Related Concept Videos

Surface Tension of Fluid01:22

Surface Tension of Fluid

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Surface tension is a fundamental property of fluids, occurring at the boundary between a liquid and a gas or between two immiscible liquids. This phenomenon arises from the cohesive forces between molecules at the fluid's surface, creating an effect similar to a stretched elastic membrane. Inside each fluid, molecules are equally attracted in all directions by neighboring molecules, but surface molecules experience a net inward force, resulting in surface tension.
Surface tension varies...
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Capillarity in Fluid01:19

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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.
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Surface Tension
The various IMFs between identical molecules of a substance are examples of cohesive forces. The molecules within a liquid are surrounded by other molecules and are attracted equally in all directions by the cohesive forces within the liquid. However, the molecules on the surface of a liquid are attracted only by about one-half as many molecules. Because of the unbalanced molecular attractions on the surface molecules, liquids contract to form a shape that minimizes the number...
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Excess Pressure Inside a Drop and a Bubble01:13

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The shape of a small drop of liquid can be considered spherical, neglecting the effect of gravity. This drop can further be considered as two equal hemispherical drops put together due to surface tension. The forces acting on the spherical drop are due to the pressure of the liquid inside the drop, the pressure due to air outside the drop, and the force due to the surface tension acting on the two hemispherical drops.
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Updated: Apr 3, 2026

Microtensiometer for Confocal Microscopy Visualization of Dynamic Interfaces
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Bubble dynamic control and potential applications based on wettability.

Wentao Zhou1, Xin Zhong1, Zhiguang Guo2

  • 1Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan 430000, People's Republic of China.

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Summary
This summary is machine-generated.

Bionic surfaces inspired by nature enable precise bubble control for applications in sewage treatment and biomedicine. This review explores self-driven and external stimulus methods for dynamic bubble manipulation.

Keywords:
Bubble manipulationSuperhydrophobic surfacesWettability

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Area of Science:

  • Surface science and materials engineering
  • Fluid dynamics
  • Biomedical engineering

Background:

  • Bubbles are crucial in diverse fields like sewage treatment, electrocatalysis, food processing, and biomedicine.
  • Effective bubble manipulation is vital for advancing research and applications.
  • Bionic material surfaces with tailored wettability offer novel approaches to bubble control.

Purpose of the Study:

  • To review the dynamic control of bubbles using bionic-based material surfaces.
  • To explore various bubble manipulation methods, including self-driven and external stimulus control.
  • To highlight potential applications and inspire future innovations in fluid manipulation.

Main Methods:

  • Investigating bionic-based material surfaces with controlled wettability.
  • Examining different dynamic states of bubbles: collection, self-driven control, external stimulus control, and splitting.
  • Analyzing the characteristics of self-driven (low energy, automatic) and external stimulus (rapid, precise) control methods.

Main Results:

  • Bionic surfaces effectively influence bubble dynamics.
  • Self-driven methods offer energy efficiency and automation.
  • External stimulus methods provide rapid and precise bubble control.

Conclusions:

  • Dynamic bubble control is achievable through bionic surfaces and diverse manipulation strategies.
  • Self-driven and external stimulus methods present distinct advantages for specific applications.
  • This review provides insights for future innovations in bubble and fluid manipulation across various scientific domains.