Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Search research articles

Related Experiment Video

Updated: May 24, 2026

A Microfluidic Device for Quantifying Bacterial Chemotaxis in Stable Concentration Gradients

A Microfluidic Device for Quantifying Bacterial Chemotaxis in Stable Concentration Gradients

Published on: April 19, 2010

A parallel diffusion-based microfluidic device for bacterial chemotaxis analysis.

Guangwei Si¹, Wei Yang, Shuangyu Bi

¹The State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, School of Physics, Peking University, Beijing, 100871, China.

|February 25, 2012

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

Booster vaccine reduces BCG-primed mice's protection against primary Mycobacterium tuberculosis infection by raising IL-10 levels.

Vaccine·2026

Same author

Reassembly nanomaterials-mediated engineered bacteria lysis for reshaping immunosuppressive microenvironment.

Biomaterials·2026

Same author

Preclinical efficacy and safety evaluation of human embryonic stem cell-derived functional hepatocytes for a clinical trial in acute liver failure.

Stem cell research & therapy·2026

Same author

Modeling reveals temperature compensation and entrainment in the peroxiredoxin-based redox oscillator as an ancient circadian timekeeper.

Physical biology·2026

Same author

Left Ventricular Intimal Sarcoma Masquerading as a Benign Mass.

JACC. Case reports·2026

Same author

Machine Learning-Enhanced Microfluidic Impedance Platform for Rare Cell Analysis.

Analytical chemistry·2026

Same journal

Tunable self-assembling cellular microarray for single-neutrophil vital and suicidal extracellular traps.

Lab on a chip·2026

Same journal

Precise programmable tumor cell subpopulation sorting <i>via</i> an electromagnetic microfluidic platform.

Lab on a chip·2026

Same journal

Bridging dimensions: combining one- and two-photon 3D printing for microfluidic device fabrication.

Lab on a chip·2026

Same journal

Microfluidic rare cell analysis beyond counting: workflow design from enrichment to multi-omics.

Lab on a chip·2026

Same journal

A sperm racetrack to separate sperm by swim speed.

Lab on a chip·2026

Same journal

Controlled encapsulation and droplet size prediction in two-step microfluidic double emulsions.

Lab on a chip·2026

See all related articles

We created a novel microfluidic device for bacterial chemotaxis detection. This easy-to-use system enables rapid analysis of chemical gradients and bacterial responses, advancing high-throughput screening.

Area of Science:

Microfluidics
Bacterial Chemotaxis
Biotechnology

Background:

Bacterial chemotaxis is crucial for understanding microbial behavior and pathogenesis.
Existing methods for chemotaxis detection can be time-consuming and lack throughput.
Developing efficient tools for chemotaxis analysis is essential for biological research.

Purpose of the Study:

To develop and validate a novel multiple-channel microfluidic device for bacterial chemotaxis detection.
To enable precise control and measurement of chemical gradients within a microfluidic system.
To provide a convenient and high-throughput platform for analyzing bacterial responses to chemical stimuli.

Main Methods:

Fabrication of a microfluidic device featuring agarose gel channels acting as semi-permeable membranes.

More Related Videos

An All-on-chip Method for Rapid Neutrophil Chemotaxis Analysis Directly from a Drop of Blood

An All-on-chip Method for Rapid Neutrophil Chemotaxis Analysis Directly from a Drop of Blood

Published on: June 23, 2017

Studies of Bacterial Chemotaxis Using Microfluidics - Interview

Studies of Bacterial Chemotaxis Using Microfluidics - Interview

Published on: May 28, 2007

Related Experiment Videos

Last Updated: May 24, 2026

A Microfluidic Device for Quantifying Bacterial Chemotaxis in Stable Concentration Gradients

A Microfluidic Device for Quantifying Bacterial Chemotaxis in Stable Concentration Gradients

Published on: April 19, 2010

An All-on-chip Method for Rapid Neutrophil Chemotaxis Analysis Directly from a Drop of Blood

An All-on-chip Method for Rapid Neutrophil Chemotaxis Analysis Directly from a Drop of Blood

Published on: June 23, 2017

Studies of Bacterial Chemotaxis Using Microfluidics - Interview

Studies of Bacterial Chemotaxis Using Microfluidics - Interview

Published on: May 28, 2007

Utilizing a novel thermal-based method for precise control of agarose gel shape.

Establishing and measuring chemical gradients through controlled diffusion.

Employing an 8-channel pipette for parallel sample addition and analysis.

Main Results:

The device demonstrated easy operation, parallel sample addition, and fast result readout.
Agarose gel channels effectively prevented bacterial passage while allowing small molecule diffusion.
Precise control and measurement of chemical gradients were achieved.
The system allowed for the analysis of different attractants, repellent chemicals, and bacteria within a one-hour readout time.

Conclusions:

The developed microfluidic device offers a convenient and efficient method for bacterial chemotaxis detection.
The novel design with agarose gel channels facilitates controlled chemical gradient formation.
This platform supports high-throughput screening of chemotaxis-related molecules and genes, with potential applications in various biological laboratories.