Synthesis of Polymer Brushes Via SI‐PET‐RAFT for Photodynamic Inactivation of Bacteria

Biofilms are a persistent issue in healthcare and industry. Once formed, the eradication of biofilms is challenging as the extracellular polymeric matrix provides protection against harsh environmental conditions and physically enhances resistance to antimicrobials. The fabrication of polymer brush...

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Bibliographic Details
Published in:Macromolecular rapid communications. 2021-09, Vol.42 (18), p.e2100106-n/a
Main Authors: Ng, Gervase, Judzewitsch, Peter, Li, Mingxiao, Pester, Christian W., Jung, Kenward, Boyer, Cyrille
Format: Article
Language:English
Subjects:
Addition polymerization
antifouling
Antifouling substances
Antimicrobial agents
Bacteria
Biofilms
Brushes
Chain transfer
Chemical synthesis
Electron transfer
Environmental conditions
Fabrication
Gram-negative bacteria
Inactivation
photodynamic therapy (PDT)
photoinduced electron transfer‐reversible addition‐fragmentation chain transfer polymerization (PET‐RAFT)
Polyethylene terephthalate
Polymer films
Polymers
Singlet oxygen
surface‐initiated
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Summary:Biofilms are a persistent issue in healthcare and industry. Once formed, the eradication of biofilms is challenging as the extracellular polymeric matrix provides protection against harsh environmental conditions and physically enhances resistance to antimicrobials. The fabrication of polymer brush coatings provides a versatile approach to modify the surface to resist the formation of biofilms. Herein, the authors report a facile synthetic route for the preparation of surface‐tethered polymeric brushes with antifouling and visible light activated bactericidal properties using surface‐initiated photoinduced electron transfer‐reversible addition‐fragmentation chain transfer polymerization (SI‐PET‐RAFT). Bactericidal property via the generation of singlet oxygen, which can be temporally and spatially controlled, is investigated against both Gram‐positive and Gram‐negative bacteria. In addition, the antibacterial properties of the surface can be recycled. This work paves the way for the preparation of polymer films that can resist and kill bacterial biofilms This communication reports an efficient synthetic route for the preparation of surface‐tethered polymeric brushes with antifouling and visible light activated bactericidal properties via surface‐initiated photoinduced electron transfer‐reversible addition‐fragmentation chain transfer polymerization.
ISSN:1022-1336
1521-3927
DOI:10.1002/marc.202100106