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Updated: Jun 3, 2026
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Live Cell Analysis of Shear Stress on Pseudomonas aeruginosa Using an Automated Higher-Throughput Microfluidic System
Published on: January 16, 2019
Real-Time Visualization of Nutrient Media Impact on Pseudomonas aeruginosa Biofilm Development Using a Microfluidic
Niamh Corkery-Hayward1, Esther Karunakaran2, Melika Gul3
1School of Mechanical, Aerospace and Civil Engineering, University of Sheffield; ncorkery-hayward1@sheffield.ac.uk.
Journal of Visualized Experiments : Jove
|June 1, 2026
Summary
This study visualizes Pseudomonas aeruginosa biofilm development using microfluidics. Nutrient media composition significantly impacts biofilm formation, offering insights for new eradication strategies against this resistant pathogen.
Area of Science:
- Microbiology
- Biotechnology
- Bioengineering
Background:
- Pseudomonas aeruginosa is a significant nosocomial pathogen with increasing antimicrobial resistance.
- Biofilm formation contributes to persistent infections and treatment challenges.
Purpose of the Study:
- To present a microfluidic protocol for real-time visualization and quantification of Pseudomonas aeruginosa biofilm development.
- To investigate the impact of nutrient media composition on biofilm formation in P. aeruginosa strains PAO1 and PA14.
Main Methods:
- Utilized optically transparent, multichannel microchannel plates for bacterial culture.
- Applied continuous, steady flow of tryptic soy broth (TSB) or modified minimal fastidious anaerobic broth (FAB) with varying carbon sources.
- Employed automated real-time imaging over 24 hours to capture biofilm dynamics.
Main Results:
- Successfully visualized and quantified biofilm surface area coverage, thickness, and roughness.
- Demonstrated that nutrient media composition significantly impacts biofilm formation in both PAO1 and PA14 strains.
- Achieved reproducible results under steady laminar flow conditions.
Conclusions:
- The developed microfluidic protocol enables detailed study of biofilm dynamics.
- Findings highlight the influence of nutritional environment on P. aeruginosa biofilm.
- Insights can inform the development of non-antimicrobial strategies for combating nosocomial infections.
