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

Motion Of A Charged Particle In A Magnetic Field01:22

Motion Of A Charged Particle In A Magnetic Field

7.0K
A charged particle experiences a force when moving through a magnetic field. Consider the field to be uniform and the charged particle to move perpendicular to it. If the field is in a vacuum, the magnetic field is the dominant factor determining the motion. Since the magnetic force is perpendicular to the direction of motion, a charged particle follows a curved path. The particle continues to follow this curved path until it forms a complete circle. Another way to look at this is that the...
7.0K
Osmosis and Osmotic Pressure of Solutions02:40

Osmosis and Osmotic Pressure of Solutions

46.4K
A number of natural and synthetic materials exhibit selective permeation, meaning that only molecules or ions of a certain size, shape, polarity, charge, and so forth, are capable of passing through (permeating) the material. Biological cell membranes provide elegant examples of selective permeation in nature, while dialysis tubing used to remove metabolic wastes from blood is a more simplistic technological example. Regardless of how they may be fabricated, these materials are generally...
46.4K
Ions and Ionic Charges03:27

Ions and Ionic Charges

78.9K
In ordinary chemical reactions, the nucleus — which contains the protons and neutrons of each atom and thus identifies the element — remains unchanged. Electrons, however, can be added to atoms by transfer from other atoms, lost by transfer to other atoms, or shared with other atoms. The transfer and sharing of electrons among atoms govern the chemistry of the elements. During the formation of some compounds, atoms gain or lose electrons to form electrically charged particles called...
78.9K
Formal Charges02:42

Formal Charges

40.3K
In some cases, there are seemingly more than one valid Lewis structures for molecules and polyatomic ions. The concept of formal charges can be used to help predict the most appropriate Lewis structure when more than one reasonable structure exists.
40.3K
Subatomic Particles03:37

Subatomic Particles

112.8K
Dalton was only partially correct about the particles that make up matter. All matter is composed of atoms, and atoms are composed of three smaller subatomic particles: protons, neutrons, and electrons. These three particles account for the mass and the charge of an atom.
112.8K
Electro-mechanical Systems01:19

Electro-mechanical Systems

1.7K
Electromechanical systems are intricate configurations that effectively combine electrical and mechanical elements to achieve a desired outcome. Central to many of these systems is the DC motor, a device that converts electrical energy into mechanical motion, enabling various applications ranging from simple fans to complex robotic mechanisms.
A key component of the DC motor is the armature, a rotating circuit positioned within a magnetic field. As an electric current passes through the...
1.7K

You might also read

Related Articles

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

Sort by
Same author

MAGED1 stabilizes NEUROD1 to promote Per3 expression in the pineal gland.

Life sciences·2026
Same author

Geometry-Aware Line Graph Transformer Pretraining for Molecular Property Prediction.

IEEE transactions on neural networks and learning systems·2026
Same author

Transient perinuclear actin rings prevent cell aging and apoptosis via nuclear mechanical protection.

Biophysical journal·2026
Same author

Force loading on molecular clutches governs the stability of cell lamellipodia.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

ALP-Responsive Luminescent Nanosheets Promote Precise Hepatitis Theragnostic by Co-Targeting NLRP3 and Cholestasis.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Uranium increases toxin biosynthesis gene expression and cell toxicity in the cyanobacteria Microcystis aeruginosa.

Environmental pollution (Barking, Essex : 1987)·2026

Related Experiment Video

Updated: Jan 27, 2026

Precise Electrochemical Sizing of Individual Electro-Inactive Particles
05:03

Precise Electrochemical Sizing of Individual Electro-Inactive Particles

Published on: August 4, 2023

1.7K

Induced charge electro-osmotic particle separation.

Xiaoming Chen1, Yukun Ren, Likai Hou

  • 1School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, PR China. rykhit@hit.edu.cn.

Nanoscale
|March 20, 2019
PubMed
Summary

Induced charge electro-osmosis (ICEO) enables stable vortices for continuous particle separation. This novel method achieves high purity for cell purification and nanoparticle isolation.

More Related Videos

Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids
13:29

Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids

Published on: August 23, 2012

14.6K
Subcutaneous Angiotensin II Infusion using Osmotic Pumps Induces Aortic Aneurysms in Mice
07:21

Subcutaneous Angiotensin II Infusion using Osmotic Pumps Induces Aortic Aneurysms in Mice

Published on: September 28, 2015

39.2K

Related Experiment Videos

Last Updated: Jan 27, 2026

Precise Electrochemical Sizing of Individual Electro-Inactive Particles
05:03

Precise Electrochemical Sizing of Individual Electro-Inactive Particles

Published on: August 4, 2023

1.7K
Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids
13:29

Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids

Published on: August 23, 2012

14.6K
Subcutaneous Angiotensin II Infusion using Osmotic Pumps Induces Aortic Aneurysms in Mice
07:21

Subcutaneous Angiotensin II Infusion using Osmotic Pumps Induces Aortic Aneurysms in Mice

Published on: September 28, 2015

39.2K

Area of Science:

  • Physics
  • Fluid Dynamics
  • Microfluidics

Background:

  • Vortex-based particle separation has been theoretical due to unstable vortices.
  • Controlling known vortices for precision separation remains a challenge.

Purpose of the Study:

  • To develop a continuous-flow particle separation method using stable induced charge electro-osmosis (ICEO) vortices.
  • To investigate ICEO focusing behavior and its application in particle separation.

Main Methods:

  • Characterized ICEO-induced particle focusing in a straight channel with a bipolar electrode.
  • Investigated ICEO separation based on particle size and mass density.
  • Applied the method for cell purification and nanoparticle isolation.

Main Results:

  • Observed unique ICEO particle trapping and concentration in two vortex cores.
  • Achieved cell purification purity exceeding 98%.
  • Successfully separated 500 nm and 5 μm polystyrene beads, demonstrating nanoparticle isolation.

Conclusions:

  • ICEO vortices provide a stable and controllable platform for continuous particle separation.
  • The method is simple, operates in continuous flow, and is based on physical properties.
  • Potential applications include environmental monitoring, cell sorting, chemical analysis, and nanomaterial isolation.