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 Video

Updated: Mar 30, 2026

Microfluidic Chips Controlled with Elastomeric Microvalve Arrays
18:11

Microfluidic Chips Controlled with Elastomeric Microvalve Arrays

Published on: October 1, 2007

21.9K

Contactless microfluidic pumping using microchannel-integrated carbon black composite membranes.

Xiaotong Fu1, Zachary Gagnon1

  • 1Department of Chemical and Biomolecular Engineering, Johns Hopkins University , 3400 North Charles St., Maryland Hall 220A, Baltimore, Maryland 21218, USA.

Biomicrofluidics
|November 7, 2015
PubMed
Summary

Researchers developed a contactless micropump for microfluidic applications. Adding carbon black to polydimethylsiloxane (PDMS) membranes significantly boosted pump pressure, enabling effective manipulation of conductive buffers.

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

Lack of documented prophylactic vitamin K administration in newborns: incidence, predictors, and bleeding outcomes in a large healthcare network population.

Journal of perinatology : official journal of the California Perinatal Association·2026
Same author

Bioderived Cellulose Aerogel Fibers with Hierarchical Porosity for Millisecond Hydrovoltaic Sensing.

Research (Washington, D.C.)·2026
Same author

Bioinspired nano-architecture for cellulose fibers with spider silk-like toughness.

Nature communications·2026
Same author

Impact of Adeno-Associated Virus Production on Capsid Heterogeneity and Product Quality.

Biotechnology and bioengineering·2026
Same author

Electrokinetic Nucleic Acid Amplification (E-NAAMP) Using Paper-PDMS Microfluidics and High-Frequency Joule Heating.

Electrophoresis·2026
Same author

Liquid Transport-Enhanced Bioinspired Heterogeneous Aerogel Fibers for Flexible Wearable and Outdoor Energy Harvesting System.

Advanced materials (Deerfield Beach, Fla.)·2026

Area of Science:

  • Microfluidics
  • Electrokinetics
  • Materials Science

Background:

  • Microfluidic platforms require efficient fluid manipulation at the micron scale.
  • Existing methods often rely on bulky external equipment, limiting portability.
  • Contactless electro-osmotic pumps offer advantages by preventing electrode damage and sample contamination.

Purpose of the Study:

  • To develop a contactless electro-osmotic micropump for pumping conductive buffers.
  • To overcome limitations of previous contactless pumps with high-resistivity polydimethylsiloxane (PDMS) membranes.
  • To enhance micropump performance by incorporating conductive materials into the PDMS membrane.

Main Methods:

  • Fabrication of contactless micropumps with gallium electrodes separated by a thin PDMS membrane.

More Related Videos

High Speed Droplet-based Delivery System for Passive Pumping in Microfluidic Devices
10:22

High Speed Droplet-based Delivery System for Passive Pumping in Microfluidic Devices

Published on: September 2, 2009

14.3K
Cell Capture Using a Microfluidic Device
29:02

Cell Capture Using a Microfluidic Device

Published on: October 1, 2007

5.8K

Related Experiment Videos

Last Updated: Mar 30, 2026

Microfluidic Chips Controlled with Elastomeric Microvalve Arrays
18:11

Microfluidic Chips Controlled with Elastomeric Microvalve Arrays

Published on: October 1, 2007

21.9K
High Speed Droplet-based Delivery System for Passive Pumping in Microfluidic Devices
10:22

High Speed Droplet-based Delivery System for Passive Pumping in Microfluidic Devices

Published on: September 2, 2009

14.3K
Cell Capture Using a Microfluidic Device
29:02

Cell Capture Using a Microfluidic Device

Published on: October 1, 2007

5.8K
  • Incorporation of conductive carbon black (CB) powder into PDMS membranes at varying weight percentages (0-20%).
  • Utilized a microfluidic T-channel device and an electro-osmotic flow model to assess pump performance.

    • Main Results:

    • The incorporation of CB into PDMS membranes significantly increased electrical conductivity.
    • Micropump pressure was enhanced by two orders of magnitude with the addition of CB.
    • Effective operation with conductive buffers was achieved, overcoming previous limitations.

    Conclusions:

    • Conductive carbon black significantly improves the performance of contactless electro-osmotic micropumps.
    • This enhanced micropump is suitable for manipulating conductive buffers in microfluidic systems.
    • The developed technology offers a portable and contamination-free solution for microfluidic fluid handling.