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

Autor: Ng G; School of Chemical Engineering, Australian Centre for NanoMedicine, Cluster for Advanced Macromolecular Design, The University of New South Wales, Sydney, New South Wales, 2052, Australia., Judzewitsch P; School of Chemical Engineering, Australian Centre for NanoMedicine, Cluster for Advanced Macromolecular Design, The University of New South Wales, Sydney, New South Wales, 2052, Australia., Li M; Department of Chemical Engineering, Department of Chemistry, Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania, 16802, USA., Pester CW; Department of Chemical Engineering, Department of Chemistry, Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania, 16802, USA., Jung K; School of Chemical Engineering, Australian Centre for NanoMedicine, Cluster for Advanced Macromolecular Design, The University of New South Wales, Sydney, New South Wales, 2052, Australia., Boyer C; School of Chemical Engineering, Australian Centre for NanoMedicine, Cluster for Advanced Macromolecular Design, The University of New South Wales, Sydney, New South Wales, 2052, Australia.
Jazyk: angličtina
Zdroj: Macromolecular rapid communications [Macromol Rapid Commun] 2021 Sep; Vol. 42 (18), pp. e2100106. Date of Electronic Publication: 2021 Apr 08.
DOI: 10.1002/marc.202100106
Abstrakt: 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.
(© 2021 Wiley-VCH GmbH.)
Databáze: MEDLINE
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