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

Electric Field of a Non Uniformly Charged Sphere01:22

Electric Field of a Non Uniformly Charged Sphere

2.5K
Gauss's law states that the electric flux through any closed surface equals the net charge enclosed within the surface. This law is beneficial for determining the expressions for the electric field for a particular charge distribution if the electric flux is known.
Consider a non-uniformly charged sphere, for which the density of charge depends only on the distance from a point in space and not on the direction. Such a sphere has a spherically symmetrical charge distribution. Here, the electric...
2.5K
Electric Field Inside a Conductor01:20

Electric Field Inside a Conductor

8.1K
When a conductor is placed in an external electric field, the free charges in the conductor redistribute and very quickly reach electrostatic equilibrium. The resulting charge distribution and its electric field have many interesting properties, which can be investigated with the help of Gauss's law.
Suppose a piece of metal is placed near a positive charge. The free electrons in the metal are attracted to the external positive charge and migrate freely toward that region. This region then...
8.1K
Electric Field at the Surface of a Conductor01:26

Electric Field at the Surface of a Conductor

5.8K
Consider a conductor in electrostatic equilibrium. The net electric field inside a conductor vanishes, and extra charges on the conductor reside on its outer surface, regardless of where they originate.
In the 19th century, Michael Faraday conducted the famous ice pail experiment to prove that the charges always reside on the surface of a conductor. The experimental set-up consists of a conducting uncharged container mounted on an insulating stand. The outer surface of the container is...
5.8K
Electrostatic Boundary Conditions in Dielectrics01:27

Electrostatic Boundary Conditions in Dielectrics

2.1K
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....
2.1K
Plane Electromagnetic Waves I01:30

Plane Electromagnetic Waves I

5.4K
The existence of combined electric and magnetic fields that propagate through space as electromagnetic (EM) waves is the most significant prediction of Maxwell's equations. As Maxwell's equations hold in free space, the predicted electromagnetic waves do not require a medium for their propagation. An EM wave comprises an electric field, defined as the force per charge on a stationary charge, and a magnetic field, which is the force per charge on a moving charge.
The EM field is assumed to be a...
5.4K
Electric Field of a Charged Disk01:23

Electric Field of a Charged Disk

3.6K
The simplest case of a surface charge distribution is the uniformly charged disk. Calculating its electric field also helps us calculate the electric field of a large plane of charge.
The system's symmetry is in the cylindrical directions across the plane of the charge. As a result, the electric fields created by various surface charge elements nullify each other in the direction parallel to the surface. Thereby, the resulting electric field is perpendicular to the plane. Since the disk is...
3.6K

You might also read

Related Articles

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

Sort by
Same author

Behavioral inhibition/activation system in obsessive-compulsive disorder: brain morphometric correlates and treatment outcomes.

Translational psychiatry·2026
Same author

Network analysis of the relationships among burnout, presenteeism, and social support in Chinese pediatric nurses.

Frontiers in public health·2026
Same author

Comparative immunogenicity of three meningococcal vaccines as the first booster dose in children primed with MPCV-AC in China.

Vaccine·2026
Same author

To explore or not: machine learning models for intraoperative decision on testicular exploration in infants under 3 months with incarcerated inguinal hernia.

BMC surgery·2026
Same author

Freeze-Thaw Durability and Anisotropic Damage Evolution of 3D-Printed River-Sediment Engineered Cementitious Composites: Effects of Interlayer Interface Defects.

Materials (Basel, Switzerland)·2026
Same author

Ultra-broadband ultraviolet detection and imaging enabled by copper-halide inside transparent glass.

Nature communications·2026

Related Experiment Video

Updated: Apr 6, 2026

Finite Element Modelling of a Cellular Electric Microenvironment
08:23

Finite Element Modelling of a Cellular Electric Microenvironment

Published on: May 18, 2021

4.1K

Computer simulations of single particles in external electric fields.

Jiajia Zhou1, Friederike Schmid

  • 1School of Chemistry & Enviroment, Center of Soft Matter Physics and its Application, Beihang University, Xueyuan Road 37, Beijing 100191, China. zhou@uni-mainz.de.

Soft Matter
|August 5, 2015
PubMed
Summary

Electric fields manipulate nanoscale particles in solution through complex interactions. Coarse-grained simulations reveal the dynamic and dielectric responses of single particles and macromolecules to electric fields.

More Related Videos

External Excitation of Neurons Using Electric and Magnetic Fields in One- and Two-dimensional Cultures
08:32

External Excitation of Neurons Using Electric and Magnetic Fields in One- and Two-dimensional Cultures

Published on: May 7, 2017

14.1K
Electric and Magnetic Field Devices for Stimulation of Biological Tissues
13:29

Electric and Magnetic Field Devices for Stimulation of Biological Tissues

Published on: May 15, 2021

5.9K

Related Experiment Videos

Last Updated: Apr 6, 2026

Finite Element Modelling of a Cellular Electric Microenvironment
08:23

Finite Element Modelling of a Cellular Electric Microenvironment

Published on: May 18, 2021

4.1K
External Excitation of Neurons Using Electric and Magnetic Fields in One- and Two-dimensional Cultures
08:32

External Excitation of Neurons Using Electric and Magnetic Fields in One- and Two-dimensional Cultures

Published on: May 7, 2017

14.1K
Electric and Magnetic Field Devices for Stimulation of Biological Tissues
13:29

Electric and Magnetic Field Devices for Stimulation of Biological Tissues

Published on: May 15, 2021

5.9K

Area of Science:

  • Physical Chemistry
  • Nanotechnology
  • Computational Science

Background:

  • Electric fields offer precise control for manipulating nanoscale particles and molecules, crucial for lab-on-a-chip applications.
  • The behavior of nanosized objects in electrolyte solutions under external fields is complex, involving ion cloud dynamics, bulk electrolyte processes, and coupled electrostatic/hydrodynamic interactions.
  • Even single-particle systems in electrolytes exhibit intricate dynamic behaviors.

Purpose of the Study:

  • To provide a molecular-level understanding of the dynamic and dielectric responses of single particles and macromolecules to external electric fields.
  • To review recent coarse-grained simulation advancements in this field.
  • To analyze particle responses to both constant (DC) and alternating (AC) electric fields.

Main Methods:

  • Utilizing coarse-grained simulations to model the behavior of nanoscale objects in electrolyte solutions.
  • Analyzing the electrophoretic mobility of charged particles under constant electric fields (DC fields).
  • Investigating the complex polarizability and dielectric response of charged and uncharged particles under alternating electric fields (AC fields).

Main Results:

  • Coarse-grained simulations provide molecular-level insights into particle and macromolecule dynamics under electric fields.
  • Electrophoretic mobility characterizes the response of charged particles to DC fields.
  • Complex polarizability describes the dielectric response of particles to AC fields.

Conclusions:

  • Coarse-grained simulations are effective tools for understanding complex particle dynamics in electric fields.
  • The study clarifies the distinct responses to DC and AC electric fields, crucial for designing advanced microfluidic and nanotechnology devices.
  • Recent simulation algorithms and developments enhance the predictive power for nanoscale electrokinetics.