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 Experiment Videos

Electrowetting dynamics of microfluidic actuation.

K-L Wang1, T B Jones

  • 1Department of Electrical and Computer Engineering, University of Rochester, Rochester, NY 14627, USA.

Langmuir : the ACS Journal of Surfaces and Colloids
|April 20, 2005
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

The prognostic significance of APC gene mutation and miR-21 expression in advanced-stage colorectal cancer.

Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland·2013
Same author

Some observations on wound healing; a clinical study, with a note on topical chemotherapy and secondary closure.

Surgery, gynecology & obstetrics·2010
Same author

Diagnostic accuracy of dual-source CT coronary angiography in a population unselected for degree of coronary artery calcification and without heart rate modification.

Clinical radiology·2010
Same author

Dual-frequency dielectrophoretic levitation of Canola protoplasts.

Biophysical journal·2009
Same author

Calciphylaxis.

Kidney international·2006
Same author

Tuberculous autonephrectomy.

Kidney international·2006
Same journal

Immobilization of Ytterbium via Polyphenol Chemistry on Implant Materials for Enhanced Cytocompatibility and Antibacterial Properties.

Langmuir : the ACS journal of surfaces and colloids·2026
Same journal

Electrochemical Oxidation Strategy for Integrated CO<sub>2</sub> Capture and Conversion.

Langmuir : the ACS journal of surfaces and colloids·2026
Same journal

Probing Molecular Structural Changes of Buried Interfaces between Polyethylene and Nylon in Polymer Thin Films after Stretching.

Langmuir : the ACS journal of surfaces and colloids·2026
Same journal

Charge Dependence of Local Hydration Dynamics in Poly(Acrylic Acid) Solutions.

Langmuir : the ACS journal of surfaces and colloids·2026
Same journal

Amphiphilic Lubricants Linked by Hydrogen Bonds Achieve Superlubricity and Enhance Water/Oil Tribological Properties.

Langmuir : the ACS journal of surfaces and colloids·2026
Same journal

Spin Dewetting of Ultrathin Polymer Films.

Langmuir : the ACS journal of surfaces and colloids·2026
See all related articles

Electrically induced liquid motion in microfluidics is hindered by dynamic friction at the contact line. This molecular friction effect delays the voltage-induced height saturation in rising liquid columns.

Area of Science:

  • Physics
  • Fluid Dynamics
  • Microfluidics

Background:

  • Electrically induced liquid motion, known as electrowetting, is a key microfluidic actuation method.
  • Understanding limitations on liquid rise height is crucial for device design.

Purpose of the Study:

  • To investigate the dynamic friction mechanism limiting liquid rise in microfluidic devices.
  • To quantify the contact line friction coefficient and analyze voltage-induced height saturation.

Main Methods:

  • A reduced-order model was developed for a rising liquid column.
  • The model quantifies dynamic friction and contact line behavior.

Main Results:

  • Dynamic friction, proportional to contact line velocity, dominates microfluidic electromechanically induced actuation.

Related Experiment Videos

  • Electromechanical force clamping and height saturation onset are delayed dynamically.

    • Conclusions:

    • Molecular dynamics at the solid-liquid interface create a velocity-dependent friction.
    • This friction mechanism influences the dynamic response and saturation limits of electrowetting devices.