Abstract
A specific copper complex is used here for the development of new antibacterial coatings against two different bacteria strains i.e. Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). Remarkably, the cationic polymerization of a glycerol-derived monomer was performed using an efficient Cu complex as a photoinitiator. The synthesized coatings which were successfully developed under UV–visible light exposure and under a solvent-free cationic photopolymerization process show excellent adhesion on stainless steel plate according to nanoindentation and scratch tests. The resulting glycerol-derived coatings have been conducted to assess the antibacterial activities against E. coli and S. aureus: a tremendous decrease of 99.9% and 96% of the adhered Escherichia coli and Staphylococcus aureus on the surface of copper containing coatings has been demonstrated in comparison with bare stainless steel supports. Finally, our investigation suggests from live/dead assays data that the synthesized polymer films show biocidal properties due to the release of Cu2+ ions, which are responsible for inhibiting bacterial proliferation.
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The authors would like to thank CNRS, UPEC and French National Agency (sPECTRAL project) for financial support.
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Sautrot-Ba, P., Al Mousawi, A., Lalevée, J. et al. Copper Complex: A Key Role in the Synthesis of Biocidal Polymer Coatings. Chemistry Africa 2, 241–251 (2019). https://doi.org/10.1007/s42250-019-00045-2
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DOI: https://doi.org/10.1007/s42250-019-00045-2