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

Intermolecular Forces03:13

Intermolecular Forces

69.9K
Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen...
69.9K
Aqueous Solutions and Heats of Hydration02:42

Aqueous Solutions and Heats of Hydration

17.5K
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...
17.5K
Ion Exchange01:17

Ion Exchange

1.1K
Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or...
1.1K
Factors Affecting Solubility04:01

Factors Affecting Solubility

36.7K
Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Chȃtelier’s principle. Consider the dissolution of silver iodide:
36.7K
Solubility Equilibria: Ionic Product of Water01:16

Solubility Equilibria: Ionic Product of Water

1.5K
Pure water is a weak electrolyte; only a small amount ionizes into hydrogen and hydroxide ions. At any given temperature, the concentration of undissociated water is almost constant, so the ionic product of water is the product of the hydrogen and hydroxide ion concentrations, denoted as Kw. The square root of Kw gives the individual ion concentrations.
The ionic product of water varies with temperature, and its value is 1.0 x 10−14 at standard experimental conditions. Per Le...
1.5K

You might also read

Related Articles

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

Sort by
Same author

Role of anion hydrophobicity: Water interactions in imidazolium ionic liquids.

The Journal of chemical physics·2026
Same author

Deep Eutectic Solvents as Green Media for Catalyst Synthesis in Advanced Oxidation Processes.

Molecules (Basel, Switzerland)·2026
Same author

State-independent ionic conductivity.

Science (New York, N.Y.)·2025
Same author

Effects of solvation structure, aggregation, and dynamic heterogeneity in highly concentrated electrolytes.

The Journal of chemical physics·2025
Same author

Nanostructure and interactions in ionic liquids with carbon dioxide: Understanding cavity formation and solvent reorganization.

The Journal of chemical physics·2025
Same author

Rational design of halo-imidazolium-based ionic liquids: tailoring the charge distribution to mimic the structure of real charge inverted analogues.

Physical chemistry chemical physics : PCCP·2025

Related Experiment Video

Updated: Jan 17, 2026

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
06:44

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

Published on: March 24, 2018

69.6K

Understanding and optimizing the structure of novel peptide-based ionic liquids: Water as modulating agent.

Lois Morandeira1,2, Angeles Sanromán1, Adilson Alves de Freitas2

  • 1CINTECX, Department of Chemical Engineering, University of Vigo, 36310 Vigo, Spain.

The Journal of Chemical Physics
|January 15, 2026
PubMed
Summary

Water

More Related Videos

Development, Characterization, and Evaluation of CAGE-based Ionic Liquid Systems for Transdermal Delivery
09:44

Development, Characterization, and Evaluation of CAGE-based Ionic Liquid Systems for Transdermal Delivery

Published on: September 26, 2025

444
Author Spotlight: Advancing Antimicrobial Resistance Research with Innovative Approaches and Synthetic Compounds
05:59

Author Spotlight: Advancing Antimicrobial Resistance Research with Innovative Approaches and Synthetic Compounds

Published on: September 27, 2024

2.5K

Related Experiment Videos

Last Updated: Jan 17, 2026

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
06:44

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

Published on: March 24, 2018

69.6K
Development, Characterization, and Evaluation of CAGE-based Ionic Liquid Systems for Transdermal Delivery
09:44

Development, Characterization, and Evaluation of CAGE-based Ionic Liquid Systems for Transdermal Delivery

Published on: September 26, 2025

444
Author Spotlight: Advancing Antimicrobial Resistance Research with Innovative Approaches and Synthetic Compounds
05:59

Author Spotlight: Advancing Antimicrobial Resistance Research with Innovative Approaches and Synthetic Compounds

Published on: September 27, 2024

2.5K

Area of Science:

  • Materials Science
  • Physical Chemistry
  • Chemical Engineering

Background:

  • Choline-peptides ([Ch][Pep]) are emerging biocompatible ionic liquids (ILs).
  • Understanding the molecular behavior of {[Ch][Pep],H2O} blends is crucial for novel applications.
  • Existing knowledge of these systems, especially at the molecular level, is limited.

Purpose of the Study:

  • To investigate the nano-structuration of five {[Ch][Pep],H2O} binary systems using molecular dynamics.
  • To identify distinct structural regimes and transitions as a function of water content.
  • To elucidate the influence of water on both polar and apolar domains within the ILs.

Main Methods:

  • Molecular dynamics (MD) simulations were performed on five {[Ch][Pep],H2O} binary systems.
  • Analysis focused on the spatial distribution of water and the resulting nanostructure.
  • Specific attention was given to the behavior of phenyl rings (Pher) in phenylalaninate-based ILs ([Ch][P] and [Ch][PP]).

Main Results:

  • Water disperses unevenly, favoring anionic charge centers in the IL network.
  • Five distinct structural regimes were identified, with key transitions around 70% and 95% water.
  • Apolar domains (Pher) exhibit different disruption patterns in [Ch][P] versus [Ch][PP] systems with increasing water content.
  • At high dilutions (e.g., 99.6% water), [Ch][PP] shows fractured apolar domains.

Conclusions:

  • Water significantly reorganizes polar and apolar motifs in {[Ch][Pep],H2O} systems.
  • Composition-dependent structural regimes and transitions were delineated.
  • These findings provide insights for designing hydrotrope solvents for pharmaceutical formulations.