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相关概念视频

Surface Tension, Capillary Action, and Viscosity02:57

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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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相关实验视频

Updated: Jul 23, 2025

Rendering SiO2/Si Surfaces Omniphobic by Carving Gas-Entrapping Microtextures Comprising Reentrant and Doubly Reentrant Cavities or Pillars
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一个抗紫外线的异质可湿性纹理表面.

Chunlei Gao1,2, Lei Zhang1, Yongping Hou1

  • 1Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P.R. China.

Advanced materials (Deerfield Beach, Fla.)
|July 13, 2023
PubMed
概括
此摘要是机器生成的。

研究人员开发了一种抗紫外线的图案表面,具有超性和超性区域. 这种新型的表面在长时间暴露在紫外线下后保持稳定性,从而使先进的应用成为可能.

关键词:
具有抗紫外线的抗紫外线性能.液体操作 液体操纵模式 模式 模式 模式 模式可以浸泡的可湿性.

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Selective Area Modification of Silicon Surface Wettability by Pulsed UV Laser Irradiation in Liquid Environment
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Selective Area Modification of Silicon Surface Wettability by Pulsed UV Laser Irradiation in Liquid Environment
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科学领域:

  • 材料科学 材料科学 材料科学
  • 表面化学 表面化学
  • 纳米技术 纳米技术

背景情况:

  • 不同质的湿透表面对于各种应用至关重要.
  • 在单一表面同时实现抗紫外线的超性和超性特性仍然是一个重大挑战.
  • 现有的表面修饰方法往往缺乏耐用性,需要面具.

研究的目的:

  • 设计和制造一种抗紫外线的异质可湿性图案表面 (UPS).
  • 在一个单一的表面上结合抗紫外线的超性和超性特性.
  • 为了证明在强烈的紫外线照射下图案表面的稳定性和功能性.

主要方法:

  • 利用激光切除在受细胞膜启发的多层涂层结构上.
  • 在超性TiO2纳米颗粒覆盖的表面上在现场创建抗紫外线的超性二氧化模式.
  • 标志着制造表面的紫外线抵抗性和可湿性稳定性.

主要成果:

  • 开发的UPS具有比传统方法高出两倍的紫外线抵抗力.
  • 类似于细胞膜的结构有效地调节水友性和疏水性区域的表面特性.
  • 不同质的湿透性在50个多小时的强烈紫外线照射中保持稳定.
  • 该UPS允许在开放式系统中控制液体湿行为.

结论:

  • 这种新的激光除方法成功地创造了持久的,抗紫外线的异质可湿性模式.
  • 该UPS在微流体,细胞培养,能量转换和水收集等领域的应用具有显著的潜力.
  • 这种方法提供了一个强大的解决方案,用于制造功能性表面,在紫外线暴露下具有量身定制的湿透性.