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

Electric Field of a Non Uniformly Charged Sphere01:22

Electric Field of a Non Uniformly Charged Sphere

2.3K
Gauss's law states that the electric flux through any closed surface equals the net charge enclosed within the surface. This law is beneficial for determining the expressions for the electric field for a particular charge distribution if the electric flux is known.
Consider a non-uniformly charged sphere, for which the density of charge depends only on the distance from a point in space and not on the direction. Such a sphere has a spherically symmetrical charge distribution. Here, the electric...
2.3K
Molecular Models02:00

Molecular Models

43.9K
Physical models representing molecular architectures of chemical compounds play essential roles in understanding chemistry. The use of molecular models makes it easier to visualize the structures and shapes of atoms and molecules.
43.9K
Structural Isomerism02:34

Structural Isomerism

21.8K
Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can...
21.8K
Solvents01:12

Solvents

71.4K
A solvent is a substance, most often a liquid, that can dissolve other substances. Here, the substance being dissolved is called a solute. When a solvent and a solute combine, they form a solution - a homogenous mixture of both the solvent and the solute. Water is a universal biological solvent. Its polar structure allows it to dissolve many other polar compounds. The ability of water to dissolve is governed by a balance between water molecules binding to each other and binding to the solute.
A...
71.4K
Molecular Shapes01:18

Molecular Shapes

62.5K
Molecules have characteristic shapes that are crucial for their function. The arrangement of various electron groups around the central atom dictates their molecular geometry. Electron pairs in the valence shell of a central atom will adopt an arrangement that minimizes repulsions between the electron pairs by maximizing the distance between them. The valence electrons form either bonding pairs, located primarily between bonded atoms, or lone pairs.
Two regions of electron density in a diatomic...
62.5K
Atomic Orbitals02:44

Atomic Orbitals

45.2K
An atomic orbital represents the three-dimensional regions in an atom where an electron has the highest probability to reside. The radial distribution function indicates the total probability of finding an electron within the thin shell at a distance r from the nucleus. The atomic orbitals have distinct shapes which are determined by l, the angular momentum quantum number. The orbitals are often drawn with a boundary surface, enclosing densest regions of the cloud.
45.2K

You might also read

Related Articles

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

Sort by
Same author

Surface Wakes on Ultrasoft Solids.

Physical review letters·2026
Same author

Spreading and absorption of silicone oil droplets on silicone elastomer films.

The European physical journal. E, Soft matter·2026
Same author

Surface Mobility of a Glass-Forming Polymer in an Ionic Liquid.

Macromolecules·2026
Same author

Enhanced dispersion of active microswimmers in confined flows.

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

Enhanced diffusion over a periodic trap by hydrodynamic coupling to an elastic mode.

Communications physics·2025
Same author

pH-Dependent Interfacial Rheology of Polymer Membranes Assembled at Liquid-Liquid Interfaces Using Hydrogen Bonds.

The journal of physical chemistry letters·2025
Same journal

Metal-Organic Framework Multizyme Colloids with Joint Antioxidant and Protease Function.

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

Morphology Engineering of Co<sub>3</sub>O<sub>4</sub> via Cetyltrimethylammonium Bromide-Mediated ZIF-67 Synthesis for Efficient Photo-Assisted Electrooxidation of Methanol.

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

Speciation of Silanol Groups on Commercial Precipitated Silicas via IR Spectroscopy.

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

Regenerable PVA Hydrogel-Functionalized Optical Fiber Sensor for Ultra-Trace Detection of Berberine Hydrochloride.

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

Hydrogen Plasma-Driven Surface Defect Engineering of ZnO Nanorods: Correlating Electronic Structure and Photoelectrochemical Performance.

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

Cooperative Self-Assembly of Nanoparticle-Encapsulating Hybrid Protein Cages.

Langmuir : the ACS journal of surfaces and colloids·2026
See all related articles

Related Experiment Video

Updated: Feb 13, 2026

Four-Dimensional Printing of Stimuli-Responsive Hydrogel-Based Soft Robots
05:43

Four-Dimensional Printing of Stimuli-Responsive Hydrogel-Based Soft Robots

Published on: January 13, 2023

4.5K

Elastowetting of Soft Hydrogel Spheres.

Aditi Chakrabarti1, Amir Porat2, Elie Raphaël2

  • 1Department of Chemical and Biomolecular Engineering , Lehigh University , Bethlehem , Pennsylvania 18015 , United States.

Langmuir : the ACS Journal of Surfaces and Colloids
|March 14, 2018
PubMed
Summary
This summary is machine-generated.

Soft hydrogel spheres exhibit arrested spreading on surfaces due to elastic shear stresses, unlike liquid water. Increasing gel stiffness enhances this effect, impacting contact angle and foot formation.

More Related Videos

Bioinspired Soft Robot with Incorporated Microelectrodes
08:24

Bioinspired Soft Robot with Incorporated Microelectrodes

Published on: February 28, 2020

9.4K
Bacterial Cellulose Spheres that Encapsulate Solid Materials
04:42

Bacterial Cellulose Spheres that Encapsulate Solid Materials

Published on: February 26, 2021

5.0K

Related Experiment Videos

Last Updated: Feb 13, 2026

Four-Dimensional Printing of Stimuli-Responsive Hydrogel-Based Soft Robots
05:43

Four-Dimensional Printing of Stimuli-Responsive Hydrogel-Based Soft Robots

Published on: January 13, 2023

4.5K
Bioinspired Soft Robot with Incorporated Microelectrodes
08:24

Bioinspired Soft Robot with Incorporated Microelectrodes

Published on: February 28, 2020

9.4K
Bacterial Cellulose Spheres that Encapsulate Solid Materials
04:42

Bacterial Cellulose Spheres that Encapsulate Solid Materials

Published on: February 26, 2021

5.0K

Area of Science:

  • Soft Matter Physics
  • Materials Science
  • Surface Science

Background:

  • Hydrogel spheres display unique wetting behavior distinct from pure liquids.
  • Understanding hydrogel-substrate interactions is crucial for material design and applications.

Purpose of the Study:

  • To systematically investigate the elastowetting phenomenon of hydrogel spheres on various substrates.
  • To elucidate the role of elastic properties and surface energy in hydrogel spreading.

Main Methods:

  • Experimental study of hydrogel spheres on rigid hydrophilic substrates with varying surface energies.
  • Systematic variation of gel elastic modulus, work of adhesion, and sphere size.
  • Analysis based on energy minimization, volume conservation, and scaling arguments.

Main Results:

  • Hydrogel spheres exhibit arrested spreading with an axisymmetric foot, unlike the thin film formation of liquid water.
  • Contact angle increases with decreasing work of adhesion and increasing elastic modulus.
  • Contact foot length correlates positively with work of adhesion and sphere size, and negatively with elastic modulus.

Conclusions:

  • Elastic shear stresses within the hydrogel significantly oppose spreading, leading to larger contact angles compared to pure liquids.
  • The observed elastowetting behavior is governed by a balance between surface energy and elastic deformation.
  • Findings provide insights into the mechanics of soft material wetting and adhesion.