毛细血管波动在稳定批量纳米泡中的作用
Yao Wang1,2, Limin Zhou1,3,2, Chunlei Wang4
1Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China.
Langmuir : the ACS journal of surfaces and colloids
|April 28, 2025
概括
这项研究模拟了批量纳米泡 (BNBs),揭示了热毛细管波强度使它们稳定. 这些发现解释了BNB的特征和潜在的软物质应用.
科学领域:
- 物理 物理学 物理
- 软物质科学 软物质科学
背景情况:
- 大量纳米泡 (BNBs) 的存在是由于实验限制和关于泡平衡的假设而引起的争论.
- 球形气泡被广泛认为无法达到稳定的平衡.
研究的目的:
- 开发一个模型来解释散装纳米泡的稳定性.
- 研究热毛细血管波对各种和环境中的BNB稳定性的影响.
主要方法:
- 开发BNB稳定性的计算模型.
- 对实验观测和计算结果的分析.
主要成果:
- 确定热毛细管波强度 (N) 作为BNB稳定性的关键因素.
- 经验证的典型BNB大小分布 (100-200nm,R_stable=107nm,N=10,000). 这是一个很好的例子.
- 在低和条件下证实了BNB的稳定性,在和水平之间尺寸波动最小.
结论:
- 拟议的模型提供了一个理解BNB稳定性的机制.
- 结果与实验观测一致,支持BNB的存在和特征.
- 提高了BNB在软物质科学中的应用潜力.
相关概念视频
Capillarity in Fluid
63
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...
63
Rise of Liquid in a Capillary Tube
1.2K
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.
1.2K
Excess Pressure Inside a Drop and a Bubble
1.5K
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.
1.5K


