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

Electrolytes: van't Hoff Factor03:08

Electrolytes: van't Hoff Factor

30.9K
Colligative Properties of ElectrolytesThe colligative properties of a solution depend only on the number, not on the identity, of solute species dissolved. The concentration terms in the equations for various colligative properties (freezing point depression, boiling point elevation, osmotic pressure) pertain to all solute species present in the solution. Nonelectrolytes dissolve physically without dissociation or any other accompanying process. Each molecule that dissolves yields one dissolved...
30.9K
Theory of Strong Electrolytes01:23

Theory of Strong Electrolytes

130
The interionic forces of the strong electrolytes depend on the solvent's dielectric constant, which is the ability of a solvent to store electrical energy, based on its polarizability. and the solution's concentration. In high-dielectric solvents and in dilute solutions, weak electrostatic forces keep ions apart. However, in low-dielectric solvents or concentrated solutions, stronger interionic forces may cause ions to pair up as ionic doublets despite being fully ionized. The theory of strong...
130
Debye–Huckel–Onsager Conductance Equation01:28

Debye–Huckel–Onsager Conductance Equation

290
The Debye-Hückel-Onsager equation is a cornerstone of physical chemistry, providing a method to determine the molar conductance (Λm) and molar conductance at infinite dilution (Λ°m) for uni-univalent electrolytes.Uni-univalent electrolytes are electrolytes that dissociate in solution to produce one cation with a +1 charge and one anion with a –1 charge per formula unit.This equation addresses two crucial phenomena: the asymmetry effect and the electrophoretic effect.
290
Trends in Lattice Energy: Ion Size and Charge02:54

Trends in Lattice Energy: Ion Size and Charge

23.3K
An ionic compound is stable because of the electrostatic attraction between its positive and negative ions. The lattice energy of a compound is a measure of the strength of this attraction. The lattice energy (ΔHlattice) of an ionic compound is defined as the energy required to separate one mole of the solid into its component gaseous ions. For the ionic solid sodium chloride, the lattice energy is the enthalpy change of the process:
23.3K
Factors Affecting Activity Coefficient01:17

Factors Affecting Activity Coefficient

1.6K
The extended Debye-Hückel equation indicates that the activity coefficient of an ion in an aqueous solution at 25°C depends on three partially interdependent properties: the ionic strength of the solution, the charge of the ion, and the ion size. 
The activity coefficient value for an ion is close to one when the solution has almost zero ionic strength, i.e., when the solution shows close to ideal behavior. As the ionic strength of the solution increases from 0 to 0.1 mol/L, a...
1.6K
Pore Transport and Ion-Pair Transport01:17

Pore Transport and Ion-Pair Transport

1.6K
Pore transport and ion-pair formation are critical mechanisms for the absorption and distribution of drugs in the body.
Pore transport, also known as convective transport, is a process where small molecules like urea, water, and sugars rapidly cross cell membranes as though there were channels or pores in the membrane. Although direct microscopic evidence is limited  but the concept of pores or channels is widely accepted based on physiological evidence. Despite the lack of direct...
1.6K

You might also read

Related Articles

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

Sort by
Same author

Molecular Dynamics Investigation of Mass Transport during Evaporation for the Binary System of <i>n</i>-Dodecane and Nitrogen.

The journal of physical chemistry. B·2026
Same author

Ion-specific symmetry-breaking at nanoconfined water-hydrocarbon interfaces.

Journal of colloid and interface science·2026
Same author

Dynamic airways drive aerosol deposition in the human lung.

International journal of pharmaceutics·2026
Same author

Toll-Like Receptor-Mediated Neuroinflammation and Its Role in Neurocognitive Functions.

Current reviews in clinical and experimental pharmacology·2026
Same author

Capillarity in swelling porous media emerges from the local heterogeneities.

Journal of colloid and interface science·2026
Same author

Endocrine-metabolic regulation during the transition period in dairy cows: mechanisms, biomarkers, and emerging diagnostics for subclinical ketosis.

Frontiers in endocrinology·2026

Related Experiment Video

Updated: Apr 29, 2026

Fine-tuning the Size and Minimizing the Noise of Solid-state Nanopores
09:43

Fine-tuning the Size and Minimizing the Noise of Solid-state Nanopores

Published on: October 31, 2013

16.3K

Ionic size dependent electroviscous effects in ion-selective nanopores.

Aditya Bandopadhyay1, Syed Sahil Hossain, Suman Chakraborty

  • 1Advanced Technology Development Center and ‡Department of Mechanical Engineering, Indian Institute of Technology Kharagpur , Kharagpur 721302, India.

Langmuir : the ACS Journal of Surfaces and Colloids
|May 24, 2014
PubMed
Summary

Ionic liquids exhibit electroviscosity, where flow resistance increases due to streaming potential. Finite ion size in nanopores dramatically augments this effect, challenging point-ion models.

More Related Videos

Monitoring Protein Adsorption with Solid-state Nanopores
08:51

Monitoring Protein Adsorption with Solid-state Nanopores

Published on: December 2, 2011

13.1K
Generation and Control of Electrohydrodynamic Flows in Aqueous Electrolyte Solutions
08:41

Generation and Control of Electrohydrodynamic Flows in Aqueous Electrolyte Solutions

Published on: September 7, 2018

7.9K

Related Experiment Videos

Last Updated: Apr 29, 2026

Fine-tuning the Size and Minimizing the Noise of Solid-state Nanopores
09:43

Fine-tuning the Size and Minimizing the Noise of Solid-state Nanopores

Published on: October 31, 2013

16.3K
Monitoring Protein Adsorption with Solid-state Nanopores
08:51

Monitoring Protein Adsorption with Solid-state Nanopores

Published on: December 2, 2011

13.1K
Generation and Control of Electrohydrodynamic Flows in Aqueous Electrolyte Solutions
08:41

Generation and Control of Electrohydrodynamic Flows in Aqueous Electrolyte Solutions

Published on: September 7, 2018

7.9K

Area of Science:

  • Physical Chemistry
  • Fluid Dynamics
  • Nanotechnology

Background:

  • Pressure-driven flows of aqueous ionic liquids show electroviscosity, an increase in apparent viscosity due to streaming potential.
  • Electrokinetic phenomena in nanopores are crucial for understanding fluid behavior at the nanoscale.

Purpose of the Study:

  • Investigate electroviscosity and streaming potential in ion-selective nanopores.
  • Analyze the impact of finite ion size on flow resistance in ionic liquid systems.

Main Methods:

  • Developed a modified continuum-based approach to model electrokinetic transport.
  • Validated the model using molecular dynamics simulations.
  • Derived an expression for ionic-size dependent streaming potential.

Main Results:

  • Reported a significant augmentation in effective viscosity due to finite ion size effects in counterion-only systems.
  • Demonstrated complex interplay between electrochemical and hydrodynamic transport in confined geometries.
  • Obtained an ionic-size dependent streaming potential expression.

Conclusions:

  • Finite ion size effects can lead to substantial underestimation of flow resistance in counterion-only systems using classical point-ion models.
  • Negligible surface conductivity and large fluidic slip exacerbate underestimations.
  • The findings highlight the importance of considering ion size in nanoscale electrokinetic flow modeling.