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

Susceptibility, Permittivity and Dielectric Constant

Susceptibility, Permittivity and Dielectric Constant

When placed in an external electric field, a dielectric material gets polarized. The charge density in the dielectric material is given by the sum of the bound and free charge densities, while the total charge density can also be written in terms of the total electric field. The bound charge density can be measured in terms of polarization, leading to the relationship between electric displacement and polarization.

Electrostatic Boundary Conditions in Dielectrics

Electrostatic Boundary Conditions in Dielectrics

When an electric field passes from one homogeneous medium to another, crossing the boundary between the two mediums imparts a discontinuity in the electric field. This results in electrostatic boundary conditions that depend on the type of mediums the field propagates through.
Consider a case where both the mediums across a boundary are two different dielectric materials. Recall that the electric field and electric displacement are proportional and related through the material's permittivity.

The Electrical Double Layer

The Electrical Double Layer

In the region where two bulk phases meet, an intricate electric charge distribution arises due to charge transfer, ion adsorption, molecular orientation, and charge distortion. This complex distribution is commonly referred to as the electrical double layer.When a solid electrode interfaces with ions in an electrolyte solution, the speed of electron transfer dictates the rates of oxidation and reduction. The electrode acquires a charge through the escape of atoms into the solution as cations or...

Electrostatic Boundary Conditions

Electrostatic Boundary Conditions

Consider an external electric field propagating through a homogeneous medium. When the electric field crosses the surface boundary of the medium, it undergoes a discontinuity. The electric field can be resolved into normal and tangential components. The amount by which the field changes at any boundary is given by the difference between the field components above and below the surface boundary.
The surface integral of an electric field is given by Gauss's law in integral form and is related to...

Theory of Strong Electrolytes

Theory of Strong Electrolytes

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...

Dielectric Polarization in a Capacitor

Dielectric Polarization in a Capacitor

The presence of a dielectric medium in a capacitor not only changes the voltage and capacitance but also affects the electric field. In general, dielectrics can be of two types: polar and nonpolar. In a polar dielectric, the positive and negative charges in the molecules are separated by a distance and hence have a permanent dipole moment. In contrast, no such charge separation exists in a nonpolar dielectric, however the nonpolar molecules get polarized in the presence of an external electric...

You might also read

Related Articles

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

Sort by

Same author

<i>E/Z</i> Isomerism of the Potential Antiepileptic Drug GIZH-298.

Molecules (Basel, Switzerland)·2026

Same author

Diagnostic evaluation, risk stratification, and peri-surgical management strategies in thyroid disorders.

Wiadomosci lekarskie (Warsaw, Poland : 1960)·2026

Same author

Stenting the Unexpected: Endovascular Management of a Common Carotid Artery Pseudoaneurysm in a 79-Year-Old Woman.

Cureus·2025

Same author

Endovascular Repair of Abdominal Aortic and Iliac Aneurysms Complicated by Multiple Endoleaks, Renal Dysfunction, and Urological Interventions.

Cureus·2025

Same author

Rare vascular presentation of PLOD1-related kyphoscoliotic Ehlers-Danlos syndrome in a 10-year-old girl with severe arterial complications.

Kardiologia polska·2025

Same author

Modification of biochar by iron containing adsorption centers as a method to enhance the remediation of perfluorooctanoic (PFOA) and (PFOS) acids from water and soil: a density functional theory study.

Journal of molecular modeling·2025

Search research articles

Related Experiment Video

Updated: Jun 16, 2026

Label-free Isolation and Enrichment of Cells Through Contactless Dielectrophoresis

Label-free Isolation and Enrichment of Cells Through Contactless Dielectrophoresis

Published on: September 3, 2013

Implicit electrostatic solvent model with continuous dielectric permittivity function.

Mikhail V Basilevsky¹, Fedor V Grigoriev, Ekaterina A Nikitina

¹Photochemistry Center and Institute of Applied Mechanics, Russian Academy of Sciences, Moscow, Russia.

The Journal of Physical Chemistry. B

|February 20, 2010

Summary

A new smooth boundary continuum model (SBCM) offers a numerically efficient electrostatic solvent model. This approach handles variable dielectric permittivity, unlike traditional models, enabling new computational possibilities.

More Related Videos

Flow-assisted Dielectrophoresis: A Low Cost Method for the Fabrication of High Performance Solution-processable Nanowire Devices

Flow-assisted Dielectrophoresis: A Low Cost Method for the Fabrication of High Performance Solution-processable Nanowire Devices

Published on: December 7, 2017

Finite Element Modelling of a Cellular Electric Microenvironment

Finite Element Modelling of a Cellular Electric Microenvironment

Published on: May 18, 2021

Related Experiment Videos

Last Updated: Jun 16, 2026

Label-free Isolation and Enrichment of Cells Through Contactless Dielectrophoresis

Label-free Isolation and Enrichment of Cells Through Contactless Dielectrophoresis

Published on: September 3, 2013

Flow-assisted Dielectrophoresis: A Low Cost Method for the Fabrication of High Performance Solution-processable Nanowire Devices

Flow-assisted Dielectrophoresis: A Low Cost Method for the Fabrication of High Performance Solution-processable Nanowire Devices

Published on: December 7, 2017

Finite Element Modelling of a Cellular Electric Microenvironment

Finite Element Modelling of a Cellular Electric Microenvironment

Published on: May 18, 2021

Area of Science:

Computational chemistry
Theoretical chemistry
Physical chemistry

Background:

Continuum solvent models are crucial for simulating molecular systems.
Existing models like PCM struggle with discontinuous dielectric permittivity.
A need exists for more versatile and accurate solvent modeling approaches.

Purpose of the Study:

To develop a modified electrostatic continuum solvent model based on the exact solution of the Poisson equation.
To introduce a numerically efficient and universal computational scheme for variable dielectric permittivity.
To present a novel approach, the smooth boundary continuum model (SBCM), as an alternative to conventional models.

Main Methods:

Solving the Poisson equation with an isotropic and continuous spatial function for dielectric permittivity.
Developing a computational scheme applicable to variable permittivity in the solvent region.
Performing test computations for water and nonaqueous solvents using the SBCM.

Main Results:

The SBCM successfully handles variable dielectric permittivity, a limitation of PCM and other models.
Test computations demonstrated specific features of the SBCM compared to PCM.
Parametrization results for different solvents were tentatively obtained.
The model's applicability to binary solvent mixtures with variable permittivity was shown.

Conclusions:

The smooth boundary continuum model (SBCM) provides a more universal and efficient approach to electrostatic continuum solvent modeling.
SBCM overcomes limitations of traditional models by allowing for continuous dielectric permittivity.
This model opens new avenues for computational studies involving complex solvent environments and mixtures.