Solution-Mediated Modulation of <i>Pseudomonas aeruginosa</i> Biofilm Formation by a Cationic Synthetic Polymer

Bacterial biofilms and their associated infections are a continuing problem in the healthcare community. Previous approaches utilizing anti-biofilm coatings suffer from short lifetimes, and their applications are limited to surfaces. In this research, we explored a new approach to biofilm prevention...

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Bibliographic Details
Main Authors: Leanna L. Foster (Author), Shin-ichi Yusa (Author), Kenichi Kuroda (Author)
Format: Book
Published: MDPI AG, 2019-05-01T00:00:00Z.
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Summary:Bacterial biofilms and their associated infections are a continuing problem in the healthcare community. Previous approaches utilizing anti-biofilm coatings suffer from short lifetimes, and their applications are limited to surfaces. In this research, we explored a new approach to biofilm prevention based on the hypothesis that changing planktonic bacteria behavior to result in sub-optimal biofilm formation. The behavior of planktonic <i>Pseudomonas aeruginosa</i> exposed to a cationic polymer was characterized for changes in growth behavior and aggregation behavior, and linked to resulting <i>P. aeruginosa</i> biofilm formation, biomass, viability, and metabolic activity. The incubation of <i>P. aeruginosa</i> planktonic bacteria with a cationic polymer resulted in the aggregation of planktonic bacteria, and a reduction in biofilm development. We propose that cationic polymers may sequester planktonic bacteria away from surfaces, thereby preventing their attachment and suppressing biofilm formation.
Item Description:2079-6382
10.3390/antibiotics8020061