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

You might also read

Related Articles

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

Sort by
Same author

Network interactions simultaneously enhance stiffness and lubricity of triple-network hydrogels.

Soft matter·2024
Same author

Adhesion Mechanics and Detachment Dynamics of Vanishing Surface Layers on Hydrogels.

Langmuir : the ACS journal of surfaces and colloids·2024
Same author

Fewer polymer chains but higher adhesion: How gradient-stiffness hydrogel layers mediate adhesion through network stretch.

The Journal of chemical physics·2023
Same author

Composition controls soft hydrogel surface layer dimensions and contact mechanics.

Biointerphases·2022
Same author

Soft Contact Mechanics with Gradient-Stiffness Surfaces.

Langmuir : the ACS journal of surfaces and colloids·2022
Same author

Low porosity, high areal-capacity Prussian blue analogue electrodes enhance salt removal and thermodynamic efficiency in symmetric Faradaic deionization with automated fluid control.

Water research X·2021

Related Experiment Video

Updated: Mar 11, 2026

The Mechanics of Poro-Elastic Contractile Actomyosin Networks As a Model System of the Cell Cytoskeleton
08:50

The Mechanics of Poro-Elastic Contractile Actomyosin Networks As a Model System of the Cell Cytoskeleton

Published on: March 10, 2023

1.2K

Poroelasticity-driven lubrication in hydrogel interfaces.

Erik R Reale1, Alison C Dunn1

  • 1Department of Mechanical Science & Engineering, University of Illinois at Urbana-Champaign, 1206 W Green St MC 244, Urbana, IL 61801, USA. acd@illinois.edu.

Soft Matter
|December 1, 2016
PubMed
Summary

Hydrogel friction is complex; poroelasticity and osmotic pressure significantly increase adhesion and friction under specific conditions, contrary to the assumption of always slippery surfaces. This research quanties the role of poroelastic relaxation in hydrogel-glass friction.

More Related Videos

Light-induced Patterning and Grafting for Slippery Surfaces based on Silane-coated Nanoporous Structures
07:23

Light-induced Patterning and Grafting for Slippery Surfaces based on Silane-coated Nanoporous Structures

Published on: November 14, 2025

481
Controlled Strain of 3D Hydrogels under Live Microscopy Imaging
07:41

Controlled Strain of 3D Hydrogels under Live Microscopy Imaging

Published on: December 4, 2020

4.1K

Related Experiment Videos

Last Updated: Mar 11, 2026

The Mechanics of Poro-Elastic Contractile Actomyosin Networks As a Model System of the Cell Cytoskeleton
08:50

The Mechanics of Poro-Elastic Contractile Actomyosin Networks As a Model System of the Cell Cytoskeleton

Published on: March 10, 2023

1.2K
Light-induced Patterning and Grafting for Slippery Surfaces based on Silane-coated Nanoporous Structures
07:23

Light-induced Patterning and Grafting for Slippery Surfaces based on Silane-coated Nanoporous Structures

Published on: November 14, 2025

481
Controlled Strain of 3D Hydrogels under Live Microscopy Imaging
07:41

Controlled Strain of 3D Hydrogels under Live Microscopy Imaging

Published on: December 4, 2020

4.1K

Area of Science:

  • Materials Science
  • Tribology
  • Soft Matter Physics

Background:

  • Hydrogel surfaces are generally considered slippery with low friction.
  • Dynamic stresses can alter hydrogel interfacial composition by displacing water.
  • The osmotic imbalance in compressed hydrogels, unable to swell, is hypothesized to increase resistance to slip.

Purpose of the Study:

  • To demonstrate the role of poroelasticity in hydrogel-glass interface friction.
  • To investigate how poroelastic relaxation influences hydrogel adhesion.
  • To develop predictive models for hydrogel friction based on poroelastic and adhesion properties.

Main Methods:

  • Micro-indentation was used to measure the work of adhesion and effective surface energy density.
  • A model for static friction coefficient was derived using area-based rules of mixture for surface energies.
  • Kinetic friction was analyzed by quantifying the competition between contact duration and relaxation time using a contacting Péclet number (PeC).

Main Results:

  • Effective surface energy density increases with applied pressure duration (10–50 mJ m⁻²).
  • A single length parameter (micrometer scale) successfully fits micro-friction data to the developed models.
  • Short contact durations and high sliding speeds maintain hydration and low friction; low speeds and interface drainage increase friction due to osmotic suction.

Conclusions:

  • Poroelasticity plays a driving role in hydrogel-glass friction, increasing adhesion through relaxation.
  • The study provides a framework for predicting hydrogel friction by linking poroelasticity, adhesion, and friction.
  • This approach offers a foundation for designing hydrogel interfaces with controlled friction properties.