Jove
Visualize
Contact Us

Related Concept Videos

Aqueous Solutions and Heats of Hydration02:42

Aqueous Solutions and Heats of Hydration

14.8K
Water and other polar molecules are attracted to ions. The electrostatic attraction between an ion and a molecule with a dipole is called an ion-dipole attraction. These attractions play an important role in the dissolution of ionic compounds in water.
When ionic compounds dissolve in water, the ions in the solid separate and disperse uniformly throughout the solution because water molecules surround and solvate the ions, reducing the strong electrostatic forces between them. This process...
14.8K

You might also read

Related Articles

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

Sort by
Same author

Ionization and Chain Size of Weak Polyelectrolytes in Semidilute Regime.

Macromolecules·2026
Same author

Charge Storage Mechanisms in Redox-Active Polymer Brushes.

Macromolecules·2026
Same author

Polyelectrolyte brush in a cylindrical pore: A Poisson-Boltzmann theory.

The Journal of chemical physics·2024
Same author

Reply to the 'Comment on "Simulations of ionization equilibria in weak polyelectrolyte solutions and gels"' by J. Landsgesell, L. Nová, O. Rud, F. Uhlík, D. Sean, P. Hebbeker, C. Holm and P. Košovan, <i>Soft Matter</i>, 2019, <b>15</b>, 1155-1185.

Soft matter·2023
Same author

Modeling the Phase Transition in Hydrophobic Weak Polyelectrolyte Gels under Compression.

Gels (Basel, Switzerland)·2023
Same author

Hairy Gels: A Computational Study.

Gels (Basel, Switzerland)·2022
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 Experiment Video

Updated: Aug 24, 2025

Synthesis of Hydrogels with Antifouling Properties As Membranes for Water Purification
07:32

Synthesis of Hydrogels with Antifouling Properties As Membranes for Water Purification

Published on: April 7, 2017

9.5K

Water Desalination Using Polyelectrolyte Hydrogel: Gibbs Ensemble Modeling.

Mikhail Laktionov1,2, Lucie Nová1, Oleg V Rud1,3

  • 1Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University in Prague, 12800 Prague, Czech Republic.

Gels (Basel, Switzerland)
|October 26, 2022
PubMed
Summary
This summary is machine-generated.

Polyelectrolyte hydrogels offer a membrane-free desalination method. Theoretical studies show they can effectively remove salt from water, with energy costs comparable to reverse osmosis.

Keywords:
desalinationpolyelectrolye hydrogelsimulation

More Related Videos

Proof-of-Concept for Gas-Entrapping Membranes Derived from Water-Loving SiO2/Si/SiO2 Wafers for Green Desalination
09:39

Proof-of-Concept for Gas-Entrapping Membranes Derived from Water-Loving SiO2/Si/SiO2 Wafers for Green Desalination

Published on: March 1, 2020

7.5K
Fabricating Degradable Thermoresponsive Hydrogels on Multiple Length Scales via Reactive Extrusion, Microfluidics, Self-assembly, and Electrospinning
12:07

Fabricating Degradable Thermoresponsive Hydrogels on Multiple Length Scales via Reactive Extrusion, Microfluidics, Self-assembly, and Electrospinning

Published on: April 16, 2018

13.5K

Related Experiment Videos

Last Updated: Aug 24, 2025

Synthesis of Hydrogels with Antifouling Properties As Membranes for Water Purification
07:32

Synthesis of Hydrogels with Antifouling Properties As Membranes for Water Purification

Published on: April 7, 2017

9.5K
Proof-of-Concept for Gas-Entrapping Membranes Derived from Water-Loving SiO2/Si/SiO2 Wafers for Green Desalination
09:39

Proof-of-Concept for Gas-Entrapping Membranes Derived from Water-Loving SiO2/Si/SiO2 Wafers for Green Desalination

Published on: March 1, 2020

7.5K
Fabricating Degradable Thermoresponsive Hydrogels on Multiple Length Scales via Reactive Extrusion, Microfluidics, Self-assembly, and Electrospinning
12:07

Fabricating Degradable Thermoresponsive Hydrogels on Multiple Length Scales via Reactive Extrusion, Microfluidics, Self-assembly, and Electrospinning

Published on: April 16, 2018

13.5K

Area of Science:

  • Materials Science
  • Chemical Engineering
  • Physical Chemistry

Background:

  • Polyelectrolyte hydrogels exhibit swelling pressure, enabling water absorption.
  • Their cross-linked network allows dewatering via external stimuli.
  • Hydrogels inherently function as osmotic membranes, suitable for desalination.

Purpose of the Study:

  • To theoretically investigate the use of polyelectrolyte hydrogels for water desalination.
  • To model the thermodynamic equilibrium between hydrogel and salt solution phases.
  • To assess the feasibility of hydrogel-based desalination as an alternative to membrane technologies.

Main Methods:

  • Utilized a coarse-grained model and the Gibbs ensemble for simulations.
  • Modeled thermodynamic equilibrium between the gel and aqueous salt solution phases.
  • Simulated stepwise hydrogel swelling and compression in open and closed systems.

Main Results:

  • Demonstrated ion removal from aqueous solutions via hydrogel swelling in open systems.
  • Showcased salt concentration reduction in small reservoirs through hydrogel compression in closed systems.
  • Modeled a stepwise salinity decrease from seawater to freshwater concentrations.

Conclusions:

  • Polyelectrolyte hydrogels are promising for desalination, potentially replacing expensive membranes.
  • The theoretical model confirms hydrogels' capacity for effective water purification.
  • Estimated energy costs for hydrogel-based desalination are comparable to reverse osmosis, indicating economic viability.