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Updated: Jun 1, 2026
10:17
Methodologies for Studying B. subtilis Biofilms as a Model for Characterizing Small Molecule Biofilm Inhibitors
Published on: October 9, 2016
Immobilized enzymes affect biofilm formation
Ana L Cordeiro1, Catharina Hippius, Carsten Werner
1Leibniz Institute of Polymer Research Dresden, Max Bergmann Center of Biomaterials Dresden, Hohe Strasse 6, 01069 Dresden, Germany. cordeiro@ipfdd.de
Biotechnology Letters
|May 28, 2011
Summary
Enzymes immobilized on surfaces can prevent bacterial attachment. Active cellulase reduced Staphylococcus epidermidis adhesion by 67%, while subtilisin A inhibited Pseudomonas aeruginosa by 44%.
Area of Science:
- Biomaterials Science
- Microbiology
- Enzyme Engineering
Background:
- Nosocomial infections are often caused by pathogenic bacteria like Pseudomonas aeruginosa and Staphylococcus epidermidis.
- Controlling bacterial adhesion to surfaces is crucial for preventing infections.
Purpose of the Study:
- To investigate the impact of immobilized enzyme activity on the initial attachment of Pseudomonas aeruginosa and Staphylococcus epidermidis.
- To evaluate the potential of enzymatic coatings as an antifouling strategy.
Main Methods:
- Covalent attachment of subtilisin A (proteolytic enzyme) and cellulase (glycoside hydrolase) onto poly(ethylene-alt-maleic) anhydride copolymer films.
- Comparison of bacterial attachment on active enzyme surfaces versus heat-inactivated control surfaces.
Main Results:
- Active immobilized cellulase significantly reduced Staphylococcus epidermidis attachment by 67% but did not affect Pseudomonas aeruginosa attachment.
- Active immobilized subtilisin A reduced Pseudomonas aeruginosa attachment by 44% but had no effect on Staphylococcus epidermidis attachment.
Conclusions:
- Bacterial attachment involves different biomolecular mechanisms for different species.
- Developing broad-spectrum antifouling enzymatic coatings requires co-immobilization of multiple enzymes.
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