Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Surface Tension, Capillary Action, and Viscosity02:57

Surface Tension, Capillary Action, and Viscosity

27.7K
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...
27.7K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Optogenetic Control of the Integrated Stress Response Limits Glioblastoma Invasion.

Cell biochemistry and function·2026
Same author

Cervical embryonal rhabdomyosarcoma beyond childhood: A case report and literature review.

Radiology case reports·2026
Same author

Mesoscale Modeling of Hydrogels Under Frictional Shear Stress.

Macromolecules·2026
Same author

Transient grating spectroscopy nondestructively characterizes the mechanics of rubbery polymers and soft gels.

Soft matter·2026
Same author

Linear Reciprocating Tribometer for In Situ Neutron Reflectometry of Soft Matter.

Tribology letters·2025
Same author

Complete Uterine Torsion Secondary to a Massive Uterine Fibroid: A Case Report.

Cureus·2025

相关实验视频

Updated: Jun 27, 2025

Preparation and High-temperature Anti-adhesion Behavior of a Slippery Surface on Stainless Steel
10:52

Preparation and High-temperature Anti-adhesion Behavior of a Slippery Surface on Stainless Steel

Published on: March 29, 2018

7.6K

来自表面凝层的生物灵感滑性

Ahmed Al Kindi1, Nemea S Courelli2, Kevin Ogbonna3

  • 1Department of Mechanical Engineering, University of California, Santa Barbara, California 93106, United States.

Langmuir : the ACS journal of surfaces and colloids
|April 29, 2024
PubMed
概括

在特定模具中聚合水凝会产生表面凝层. 这些层可以减少摩擦,并在接触时保护敏感的眼细胞,模仿自然的保护屏障.

更多相关视频

Rendering SiO2/Si Surfaces Omniphobic by Carving Gas-Entrapping Microtextures Comprising Reentrant and Doubly Reentrant Cavities or Pillars
08:02

Rendering SiO2/Si Surfaces Omniphobic by Carving Gas-Entrapping Microtextures Comprising Reentrant and Doubly Reentrant Cavities or Pillars

Published on: February 11, 2020

9.0K
Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes
13:57

Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes

Published on: December 24, 2014

14.0K

相关实验视频

Last Updated: Jun 27, 2025

Preparation and High-temperature Anti-adhesion Behavior of a Slippery Surface on Stainless Steel
10:52

Preparation and High-temperature Anti-adhesion Behavior of a Slippery Surface on Stainless Steel

Published on: March 29, 2018

7.6K
Rendering SiO2/Si Surfaces Omniphobic by Carving Gas-Entrapping Microtextures Comprising Reentrant and Doubly Reentrant Cavities or Pillars
08:02

Rendering SiO2/Si Surfaces Omniphobic by Carving Gas-Entrapping Microtextures Comprising Reentrant and Doubly Reentrant Cavities or Pillars

Published on: February 11, 2020

9.0K
Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes
13:57

Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes

Published on: December 24, 2014

14.0K

科学领域:

  • 生物材料科学 生物材料科学
  • 部落学 (tribology) 是一个学科.
  • 眼科医生 眼科 眼科

背景情况:

  • 隐形眼镜上的表面凝层减少了摩擦,并保护了上皮细胞.
  • 氧抑制的聚合物可以产生这些有益的表面凝层.

研究的目的:

  • 调查模具材料如何影响水凝表面特性和生物形学性能.
  • 为了证明水凝表面层在滑动接触时对细胞损伤的保护作用.

主要方法:

  • 聚烯胺水凝探针被聚合在具有不同表面能量和氧气透性的模具中 (玻璃,PEEK,PTFE).
  • 测量了表面弹性模块.
  • 使用人类角膜上皮细胞 (hTCEpi) 进行了生物试验,以评估摩擦和细胞损伤.

主要成果:

  • 在PEEK和PTFE模具中聚合的水凝探头与玻璃模具相比,表面弹性模块明显较低.
  • 带有表面凝层的水凝探针显示,对细胞的摩擦剪切应力减少.
  • 这些探头在滑动接触时提供了对细胞损伤的增强保护.

结论:

  • 在聚合过程中的"模具效应"会影响水凝表面的特性,形成保护性凝层.
  • 这些工程水凝表面有效地减少剪切应力和减轻细胞损伤,类似于自然的眼睛表面防御.