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

Ionic Radii03:10

Ionic Radii

33.5K
Ionic radius is the measure used to describe the size of an ion. A cation always has fewer electrons and the same number of protons as the parent atom; it is smaller than the atom from which it is derived. For example, the covalent radius of an aluminum atom (1s22s22p63s23p1) is 118 pm, whereas the ionic radius of an Al3+ (1s22s22p6) is 68 pm. As electrons are removed from the outer valence shell, the remaining core electrons occupying smaller shells experience a greater effective nuclear...
33.5K
Ionic Bonds00:42

Ionic Bonds

130.6K
Overview
When atoms gain or lose electrons to achieve a more stable electron configuration they form ions. Ionic bonds are electrostatic attractions between ions with opposite charges. Ionic compounds are rigid and brittle when solid and may dissociate into their constituent ions in water. Covalent compounds, by contrast, remain intact unless a chemical reaction breaks them.
Opposing Charges Hold Ions Together in Ionic Compounds
Ionic bonds are reversible electrostatic interactions between ions...
130.6K
Molecular and Ionic Solids02:54

Molecular and Ionic Solids

20.0K
Crystalline solids are divided into four types: molecular, ionic, metallic, and covalent network based on the type of constituent units and their interparticle interactions.
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
20.0K
Solubility of Ionic Compounds02:55

Solubility of Ionic Compounds

68.2K
Solubility is the measure of the maximum amount of solute that can be dissolved in a given quantity of solvent at a given temperature and pressure. Solubility is usually measured in molarity (M) or moles per liter (mol/L). A compound is termed soluble if it dissolves in water.
68.2K
Ionic Crystal Structures02:42

Ionic Crystal Structures

17.0K
Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
17.0K
Ionic Compounds: Formulas and Nomenclature03:34

Ionic Compounds: Formulas and Nomenclature

87.1K
An element composed of atoms that readily lose electrons (a metal) can react with an element composed of atoms that readily gain electrons (a nonmetal) to produce ions through complete electron transfer. The compound formed by this transfer is stabilized by the electrostatic attractions (ionic bonds) between the oppositely charged ions.
87.1K

You might also read

Related Articles

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

Sort by
Same author

Spiers Memorial Lecture: Breakdown of universality in angstrom-scale flows.

Faraday discussions·2026
Same author

Self-Formation of Nanoporous Metal-Organic Framework/Water Interphase.

ACS applied nano materials·2026
Same author

Electron-electrolyte coupling in AC transport through nanofluidic channels.

The Journal of chemical physics·2026
Same author

Magnetic drag from frustrated order.

Nature materials·2026
Same author

Osmotic traps for colloids and macromolecules based on logarithmic sensing in salt taxis.

Soft matter·2026
Same author

Frictional Unlocking and Energy-Controlled Constrained Densification in Nanoparticle Networks.

ACS nano·2025
Same journal

Selective Effects of Backbone Cyclization and Disulfide Bonding as Global Covalent Constraints on the Conformational Ensemble of Sunflower Trypsin Inhibitor-1.

The journal of physical chemistry. B·2026
Same journal

Europium Coordination Structure in Peptide Complexes Resolved with Simulation and X-ray Absorption Spectroscopy.

The journal of physical chemistry. B·2026
Same journal

Competitive Coordination and Structural Evolution of Phenylalanine-Mg<sup>2+</sup> Complexes in Microaqueous Environments: Insights from DFT and Molecular Dynamics Simulations.

The journal of physical chemistry. B·2026
Same journal

Dressing up a Magnetic Nanoparticle at Atomic Resolution: Molecular Simulation of Full Carrier Grafting by Self-Assembled Monolayers.

The journal of physical chemistry. B·2026
Same journal

Ferroelectricity in Dipolar Liquids: The Role of Annealed Positional Disorder.

The journal of physical chemistry. B·2026
Same journal

Computational Insights into the Antiviral Properties of the Antimicrobial Peptide β-Amyloid.

The journal of physical chemistry. B·2026
See all related articles

Related Experiment Video

Updated: Jan 31, 2026

Deriving the Time Course of Glutamate Clearance with a Deconvolution Analysis of Astrocytic Transporter Currents
09:42

Deriving the Time Course of Glutamate Clearance with a Deconvolution Analysis of Astrocytic Transporter Currents

Published on: August 7, 2013

10.8K

Beyond the Tradeoff: Dynamic Selectivity in Ionic Transport and Current Rectification.

Anthony R Poggioli1,2, Alessandro Siria1,2, Lydéric Bocquet1,2

  • 1Laboratoire de Physique Statistique , Ecole Normale Supérieure , Paris 75005 , France.

The Journal of Physical Chemistry. B
|January 11, 2019
PubMed
Summary
This summary is machine-generated.

Surface conductance enables dynamic ion selectivity in nanopores, controlled by Dukhin overlap, not Debye overlap. This allows for larger nanopore membranes with significant ion selectivity and potential applications in energy conversion and separations.

More Related Videos

Evaluating Plasmonic Transport in Current-carrying Silver Nanowires
09:00

Evaluating Plasmonic Transport in Current-carrying Silver Nanowires

Published on: December 11, 2013

5.6K
Vibrational Spectra of a N719-Chromophore/Titania Interface from Empirical-Potential Molecular-Dynamics Simulation, Solvated by a Room Temperature Ionic Liquid
08:54

Vibrational Spectra of a N719-Chromophore/Titania Interface from Empirical-Potential Molecular-Dynamics Simulation, Solvated by a Room Temperature Ionic Liquid

Published on: January 25, 2020

6.0K

Related Experiment Videos

Last Updated: Jan 31, 2026

Deriving the Time Course of Glutamate Clearance with a Deconvolution Analysis of Astrocytic Transporter Currents
09:42

Deriving the Time Course of Glutamate Clearance with a Deconvolution Analysis of Astrocytic Transporter Currents

Published on: August 7, 2013

10.8K
Evaluating Plasmonic Transport in Current-carrying Silver Nanowires
09:00

Evaluating Plasmonic Transport in Current-carrying Silver Nanowires

Published on: December 11, 2013

5.6K
Vibrational Spectra of a N719-Chromophore/Titania Interface from Empirical-Potential Molecular-Dynamics Simulation, Solvated by a Room Temperature Ionic Liquid
08:54

Vibrational Spectra of a N719-Chromophore/Titania Interface from Empirical-Potential Molecular-Dynamics Simulation, Solvated by a Room Temperature Ionic Liquid

Published on: January 25, 2020

6.0K

Area of Science:

  • Nanopore science
  • Surface chemistry
  • Electrochemistry

Background:

  • Ion selectivity in nanopores is traditionally explained by Debye overlap.
  • Debye length limitations restrict nanopore size to 1-10 nm for ion selectivity.
  • This limits the efficiency of energy conversion and separation techniques.

Purpose of the Study:

  • To investigate the role of surface conductance in ion transport selectivity.
  • To introduce Dukhin overlap as a new mechanism for ion selectivity.
  • To explore the potential for designing large-nanopore membranes with enhanced ion selectivity.

Main Methods:

  • Analytical modeling of ion transport in nanopores.
  • Calculation of Dukhin length based on surface and bulk conductance.
  • Analysis of ion current rectification mechanisms.

Main Results:

  • Surface conductance generates dynamic ion selectivity controlled by Dukhin overlap.
  • Dukhin length can reach hundreds of nanometers, enabling large-nanopore (10-100 nm) membranes.
  • This mechanism explains ion current rectification without requiring Debye overlap.

Conclusions:

  • Dukhin overlap offers a new paradigm for designing highly selective large-nanopore membranes.
  • This finding has significant implications for osmotic energy conversion and separation technologies.
  • Debye overlap is not essential for achieving ion current rectification in nanopores.