Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Capillary Electrophoresis: Applications

Capillary Electrophoresis: Applications

Capillary electrophoretic separations offer various modes, each with unique applications. These modes include capillary zone electrophoresis, capillary gel electrophoresis, capillary array electrophoresis, capillary isoelectric focusing, capillary isotachophoresis, micellar electrokinetic chromatography, and capillary electrochromatography.
Capillary zone electrophoresis (CZE) separates ionic components based on their electrophoretic mobility. It has been used to separate proteins, amino acids,...

Ion-Exchange Chromatography

Ion-Exchange Chromatography

Ion-exchange chromatography, or IEC, is a technique for separating ions based on their affinity for the stationary phase. The stationary phase is a cross-linked polymer resin with covalently attached ionic functional groups. The functional groups can be either positively charged (cation exchangers) or negatively charged (anion exchangers). A cation exchanger consists of a polymeric anion and active cations, while an anion exchanger is a polymeric cation with active anions. The choice of...

You might also read

Related Articles

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

Sort by

Same author

Hidden Quantum Hall Stripes in Al_{x}Ga_{1-x}As/Al_{0.24}Ga_{0.76}As Quantum Wells.

Physical review letters·2020

Same author

ZnO Nanocrystal Networks Near the Insulator-Metal Transition: Tuning Contact Radius and Electron Density with Intense Pulsed Light.

Nano letters·2017

Same author

Percolation via Combined Electrostatic and Chemical Doping in Complex Oxide Films.

Physical review letters·2017

Same author

Metal-insulator transition in films of doped semiconductor nanocrystals.

Nature materials·2015

Same author

Why is the bulk resistivity of topological insulators so small?

Physical review letters·2012

Same author

Coulomb gap triptych in a periodic array of metal nanocrystals.

Physical review letters·2012

Search research articles

Related Experiment Video

Updated: May 31, 2026

Multi-analyte Biochip (MAB) Based on All-solid-state Ion-selective Electrodes (ASSISE) for Physiological Research

Multi-analyte Biochip (MAB) Based on All-solid-state Ion-selective Electrodes (ASSISE) for Physiological Research

Published on: April 18, 2013

Non-mean-field screening by multivalent counterions.

M S Loth¹, B I Shklovskii

¹Department of Physics, University of Minnesota, Minneapolis, MN 55455, USA.

Journal of Physics. Condensed Matter : an Institute of Physics Journal

|July 1, 2011

Summary

This summary is machine-generated.

Multivalent counterions near charged macroions form a strongly correlated liquid (SCL), not described by Poisson-Boltzmann theory. Monte Carlo simulations confirm an electrostatic image potential, explaining faster charge density decrease than predicted.

More Related Videos

High-throughput Screening for Small-molecule Modulators of Inward Rectifier Potassium Channels

High-throughput Screening for Small-molecule Modulators of Inward Rectifier Potassium Channels

Published on: January 27, 2013

Nano-Differential Scanning Fluorimetry for Screening in Fragment-based Lead Discovery

Nano-Differential Scanning Fluorimetry for Screening in Fragment-based Lead Discovery

Published on: May 16, 2021

Related Experiment Videos

Last Updated: May 31, 2026

Multi-analyte Biochip (MAB) Based on All-solid-state Ion-selective Electrodes (ASSISE) for Physiological Research

Multi-analyte Biochip (MAB) Based on All-solid-state Ion-selective Electrodes (ASSISE) for Physiological Research

Published on: April 18, 2013

High-throughput Screening for Small-molecule Modulators of Inward Rectifier Potassium Channels

High-throughput Screening for Small-molecule Modulators of Inward Rectifier Potassium Channels

Published on: January 27, 2013

Nano-Differential Scanning Fluorimetry for Screening in Fragment-based Lead Discovery

Nano-Differential Scanning Fluorimetry for Screening in Fragment-based Lead Discovery

Published on: May 16, 2021

Area of Science:

Physical Chemistry
Colloid Science
Computational Physics

Background:

Poisson-Boltzmann (PB) theory fails to describe strongly charged macroions with multivalent counterions.
Multivalent counterions form a strongly correlated liquid (SCL) on macroion surfaces.
Previous predictions suggested SCLs behave like metallic surfaces, creating electrostatic images.

Purpose of the Study:

To investigate the behavior of multivalent counterions around charged macroions.
To confirm the existence of electrostatic image potential predicted for SCLs.
To compare counterion distribution with Poisson-Boltzmann theory predictions.

Main Methods:

Monte Carlo simulations were employed to determine equilibrium counterion distribution.
Analysis focused on electrostatic interactions between macroions and counterions.
Comparison of simulation results with theoretical predictions from PB theory.

Main Results:

The existence of an electrostatic image potential was confirmed via simulations.
Counterion charge density decreases faster with distance than predicted by PB theory.
The SCL exhibits a negative screening length (-2ξ), with an effective metallic surface located |ξ| above the SCL.

Conclusions:

The strongly correlated liquid (SCL) model accurately describes counterion behavior around macroions.
Electrostatic image potential plays a crucial role in counterion distribution.
PB theory is inadequate for systems with strongly correlated multivalent counterions.