Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Contact Angle01:13

Contact Angle

12.4K
When a solid is dipped inside a liquid, the liquid surface becomes curved near the contact. For some solid–liquid interfaces, the liquid is pulled up along the solid, while for others, the liquid surface is convex or depressed near the solid surface. This phenomenon can be explained using the concept of cohesive and adhesive forces.
The adhesive force is the molecular force between molecules of different materials, that is, between the molecules of the solid and the liquid. The cohesive...
12.4K
Adhesion01:14

Adhesion

39.9K
Adhesion occurs when one type of molecule is attracted to a different molecule. Water exhibits adhesive properties in the presence of polar surfaces, such as glass or cellulose in plants. For instance, when water is poured into a glass, the positively charged hydrogen molecules of water are more attracted to the negatively charged oxygen molecules in the silica than to the oxygen in neighboring water molecules.
Capillary action is a result of water’s adhesive tendencies. When a narrow...
39.9K
Surface Tension, Capillary Action, and Viscosity02:57

Surface Tension, Capillary Action, and Viscosity

27.8K
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...
27.8K
Cell Adhesion Molecules - Types and Functions01:20

Cell Adhesion Molecules - Types and Functions

6.7K
Cell adhesion molecules (CAMs) are pivotal to multicellularity and the coordinated functioning of tissues and organ systems. They enable physical interactions between cells and provide mechanical strength to tissues. They also function as receptors for signal transmission across the plasma membrane. The CAMs are broadly classified into four families - integrins, cadherins, selectins, and immunoglobulin-like CAMs (IgCAMs).
CAM Families
The Integrin family of proteins is primarily  involved...
6.7K
Cohesion01:07

Cohesion

54.3K
Cohesion is the attraction between molecules of the same type, such as water molecules. Water molecules have an overall neutral charge but are polar molecule. An oxygen atom in one water molecule has a partial negative charge that can bind to a hydrogen atom with a partial positive charge in a second water molecule, forming a hydrogen bond. Each water molecule can form up to four hydrogen bonds with other water molecules. Hydrogen bonds are responsible for water's cohesive nature.
On a...
54.3K
Focusing of Light in the Eye01:16

Focusing of Light in the Eye

2.8K
Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
2.8K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Molecular Origins of Nonfrozen Water in Polyelectrolyte Brushes.

Langmuir : the ACS journal of surfaces and colloids·2026
Same author

Exploring allomelanin: A comparative analysis via natural product extraction and synthesis.

Science advances·2026
Same author

Promoting organic nucleation of diclofenac: hydrophobic interfacial interactions drive self-assembly.

Chemical science·2025
Same author

Active learning for nonparametric multiscale modeling of boundary lubrication.

Science advances·2025
Same author

Correction to "Phase Diagram of Polyelectrolyte Solutions in Ice and Water".

The journal of physical chemistry. B·2025
Same author

Roughness-dependent scaling of the contact area and separation gap with pressure for glassy polymers.

Proceedings of the National Academy of Sciences of the United States of America·2025

Related Experiment Video

Updated: Jul 1, 2025

Thin Film Composite Silicon Elastomers for Cell Culture and Skin Applications: Manufacturing and Characterization
08:02

Thin Film Composite Silicon Elastomers for Cell Culture and Skin Applications: Manufacturing and Characterization

Published on: July 3, 2018

10.7K

Why soft contacts are stickier when breaking than when making them.

Antoine Sanner1,2,3, Nityanshu Kumar4,5, Ali Dhinojwala4

  • 1Department of Microsystems Engineering (IMTEK), University of Freiburg, Georges-Köhler-Allee 103, 79110 Freiburg, Germany.

Science Advances
|March 6, 2024
PubMed
Summary
This summary is machine-generated.

Soft solids exhibit adhesion hysteresis, where separation forces exceed formation forces. This study reveals surface roughness, not just viscoelasticity, causes this phenomenon through stick-slip motion.

More Related Videos

Synthesis of Soft Polysiloxane-urea Elastomers for Intraocular Lens Application
11:49

Synthesis of Soft Polysiloxane-urea Elastomers for Intraocular Lens Application

Published on: March 8, 2019

12.6K
Development of an In Vitro Ocular Platform to Test Contact Lenses
08:28

Development of an In Vitro Ocular Platform to Test Contact Lenses

Published on: April 6, 2016

10.6K

Related Experiment Videos

Last Updated: Jul 1, 2025

Thin Film Composite Silicon Elastomers for Cell Culture and Skin Applications: Manufacturing and Characterization
08:02

Thin Film Composite Silicon Elastomers for Cell Culture and Skin Applications: Manufacturing and Characterization

Published on: July 3, 2018

10.7K
Synthesis of Soft Polysiloxane-urea Elastomers for Intraocular Lens Application
11:49

Synthesis of Soft Polysiloxane-urea Elastomers for Intraocular Lens Application

Published on: March 8, 2019

12.6K
Development of an In Vitro Ocular Platform to Test Contact Lenses
08:28

Development of an In Vitro Ocular Platform to Test Contact Lenses

Published on: April 6, 2016

10.6K

Area of Science:

  • Physics
  • Materials Science
  • Soft Matter Physics

Background:

  • Soft solids are inherently sticky, readily forming adhesive contacts.
  • Adhesion hysteresis, where separation forces exceed formation forces, is typically attributed to viscoelasticity or contact aging.

Purpose of the Study:

  • To investigate the origins of adhesion hysteresis in soft solids.
  • To determine if adhesion hysteresis occurs in perfectly elastic materials.
  • To develop a model for contact formation influenced by surface roughness.

Main Methods:

  • Experimental investigations of soft solid adhesion.
  • Computational simulations of contact mechanics.
  • Derivation of a theoretical equation for contact line dynamics.

Main Results:

  • Adhesion hysteresis is observed even in perfectly elastic soft solids.
  • Surface roughness induces stick-slip motion of the contact line, dissipating energy.
  • A parameter-free equation accurately quantifies contact formation with roughness.

Conclusions:

  • Surface roughness is a primary driver of adhesion hysteresis in soft solids.
  • The phenomenon of stick-slip motion is crucial for understanding soft adhesion.
  • This work offers a fundamental reevaluation of soft adhesion principles.