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

The Electrical Double Layer01:30

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...

You might also read

Related Articles

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

Sort by
Same author

Nanotube field electron emission: principles, development, and applications.

Nanotechnology·2015
Same author

A 2D MEMS mirror with sidewall electrodes applied for confocal MACROscope imaging.

Journal of microscopy·2011
Same author

Electromechanical interactions in a carbon nanotube based thin film field emitting diode.

Nanotechnology·2011
Same author

Design and evaluation of quantum dot sensors for making superficial x-ray energy radiation measurements.

Nanotechnology·2010
Same author

Multiphase electrodes for microbead control applications: integration of DEP and electrokinetics for bio-particle positioning.

Biosensors & bioelectronics·2006

Related Experiment Video

Updated: Jul 14, 2026

Development of a 3D Graphene Electrode Dielectrophoretic Device
11:15

Development of a 3D Graphene Electrode Dielectrophoretic Device

Published on: June 22, 2014

Enhancing dielectrophoresis effect through novel electrode geometry.

J T Y Lin1, J T W Yeow

  • 1Systems Design Engineering, University of Waterloo, 200 University Ave. W, Waterloo, Ontario N2L 3G1, Canada.

Biomedical Microdevices
|June 19, 2007
PubMed
Summary

This study introduces a novel microchip device using triangular electrodes to enhance dielectrophoresis (DEP) effects for precise microbead manipulation. The device enables controlled vertical and horizontal movement, improving upon existing electrode array technologies.

More Related Videos

Label-free Isolation and Enrichment of Cells Through Contactless Dielectrophoresis
10:38

Label-free Isolation and Enrichment of Cells Through Contactless Dielectrophoresis

Published on: September 3, 2013

AC Electrokinetic Phenomena Generated by Microelectrode Structures
20:38

AC Electrokinetic Phenomena Generated by Microelectrode Structures

Published on: July 28, 2008

Related Experiment Videos

Last Updated: Jul 14, 2026

Development of a 3D Graphene Electrode Dielectrophoretic Device
11:15

Development of a 3D Graphene Electrode Dielectrophoretic Device

Published on: June 22, 2014

Label-free Isolation and Enrichment of Cells Through Contactless Dielectrophoresis
10:38

Label-free Isolation and Enrichment of Cells Through Contactless Dielectrophoresis

Published on: September 3, 2013

AC Electrokinetic Phenomena Generated by Microelectrode Structures
20:38

AC Electrokinetic Phenomena Generated by Microelectrode Structures

Published on: July 28, 2008

Area of Science:

  • Microfluidics
  • Biotechnology
  • Electrical Engineering

Background:

  • Dielectrophoresis (DEP) is a key technique for manipulating microparticles.
  • Existing DEP devices often lack precise control over particle positioning.
  • Novel electrode geometries are needed to enhance DEP performance.

Purpose of the Study:

  • To present an original microchip device that enhances dielectrophoresis effects.
  • To demonstrate precise manipulation and positioning of dielectric microbeads.
  • To improve upon existing electrode array devices for microparticle control.

Main Methods:

  • Fabrication of a microchip device with individually triangular-shaped electrodes in a parallel array using a single-layer metal process.
  • Application of dielectrophoresis (DEP) waveforms to manipulate dielectric microbeads.
  • Investigation of frequency-dependent vertical positioning and traveling wave DEP for horizontal movement.

Main Results:

  • Novel triangular electrodes generate horizontal electric field bands, enabling microbead manipulation into a straight line.
  • Microbead line position is sensitive to DEP waveform frequency, allowing vertical shifting.
  • Traveling wave DEP facilitates horizontal movement of microbeads.
  • The device offers accurate control over both vertical and horizontal positions.

Conclusions:

  • The novel electrode geometry significantly enhances dielectrophoresis effects.
  • The developed microchip device provides precise, frequency-tunable control over microparticle positioning.
  • This technology offers substantial improvements for microparticle manipulation and potential multi-lane separation applications.