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

Microfluidic pump powered by self-organizing bacteria.

Min Jun Kim1, Kenneth S Breuer

  • 1Department of Mechanical Engineering and Mechanics, Drexel University, 3141 Chestnut St, Philadelphia, PA 19104, USA. mkim@coe.drexel.edu

Small (Weinheim an Der Bergstrasse, Germany)
|December 19, 2007
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

Ring-Electrode AC Plasmonic Nanopore Sensing for DNA Load Characterization of Single Adeno-Associated Viruses.

Sensors (Basel, Switzerland)·2026
Same author

Clinical Outcomes of Straddle Fracture Patterns: A Retrospective Multicenter Analysis Based on a New Descriptive Classification Framework.

Clinics in orthopedic surgery·2026
Same author

Combating small extracellular vesicle-mediated immunological barriers in the tumor microenvironment via strategically activatable PEGylated peptides.

Signal transduction and targeted therapy·2026
Same author

Quantitative Analysis of Protein-Receptor Binding Using Solid-State Nanopores: Accurate Measurement of Dissociation Constants for KREMEN1 and ASGR1 with SARS-CoV-2 Spike RBD Protein.

The journal of physical chemistry. B·2026
Same author

Single-Particle Analysis of Cargo-Dependent Deformation in Lipid Nanoparticles Using Resistive Pulse Sensing: Implications for Formulation Optimization and Quality Control of mRNA Nanomedicine.

ACS applied nano materials·2026
Same author

Directional Single-Protein Transport Enabled by 2D Material Heterointerfaces in Solid-State Nanopores: Implications for Single-Molecule Sensing.

ACS applied nano materials·2026
Same journal

Cell Membrane-Engineered FePDA Nanoparticles Integrate Ferroptosis and Antitumor Immunity.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same journal

Finding the Perfect Match: Investigation of 1,2-Diketone-Based Materials for Use as Cathode Active Material in Rechargeable Magnesium Batteries.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same journal

Stabilization of Cu Species in UiO-66 Metal-Organic Framework for CO<sub>2</sub>-to-Methanol: Insights From Operando X-ray and Electron Microscopy Studies.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same journal

BODIPY Photocage-Based Injectable Hydrogel for Light-Controlled Nanoparticle Release.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same journal

Multifunctional Nanodiamond Conjugate With a Tumor-Specific EGFR-Targeting Peptide and Photoactivated CO Release for Improved Therapeutic Efficacy in Head and Neck Cancers.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same journal

Multifunctional Self-Bonding Biocomposites Enabled by Uniform Dispersion of Carbon Nanotube via In Situ Lignin and Multiple Noncovalent Bonds.

Small (Weinheim an der Bergstrasse, Germany)·2026
See all related articles

Live bacteria act as mechanical actuators in microfluidic systems, creating a self-organizing bacterial carpet. This carpet autonomously pumps fluid in microchannels, with performance enhanced by glucose and channel geometry.

Area of Science:

  • Biotechnology
  • Microfluidics
  • Mechanical Engineering

Background:

  • Microfluidic systems often require external power sources for fluid manipulation.
  • Live biological components offer novel possibilities for autonomous microscale operations.

Purpose of the Study:

  • To demonstrate the use of live bacteria as mechanical actuators in microfluidic devices.
  • To investigate the self-organization of bacteria for fluid pumping.
  • To analyze factors influencing bacterial pumping performance.

Main Methods:

  • Utilized flow deposition to create a motile bacterial carpet in microfabricated systems.
  • Employed tracer particle tracking to monitor fluid motion generated by bacteria.
  • Manipulated chemical environment (glucose addition) and channel geometry to assess performance.

Related Experiment Videos

Main Results:

  • Bacteria self-organized into a carpet, generating collective fluid motion.
  • Achieved autonomous fluid pumping in microchannels at speeds up to 25 microm s(-1).
  • Pumping performance increased with glucose addition, enhancing metabolic activity.
  • Narrower channel geometries resulted in higher pumping velocities and faster response times.

Conclusions:

  • Live bacteria can be effectively utilized as autonomous mechanical actuators in microfluidic systems.
  • Bacterial self-organization and collective motion are key to generating fluid flow.
  • Environmental factors and device geometry significantly impact the efficiency of bacterial micro-pumps.