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Synthesis and photobactericidal properties of a neutral porphyrin grafted onto lignocellulosic fibers

Abstract : Photodynamic antimicrobial chemotherapy (PACT), as one of the promising alternative antimicrobial treatment, has received great attention in recent years. In this work, a new antimicrobial material has been elaborated by grafting a neutral porphyrin, the metalled 5-(4-azidophenyl)-10,15,20-triphenylporphyrin, onto lignocellulosic fibers by using the Copper (I)-Catalyzed Alkyne-Azide 1,3-dipolar Cycloaddition (CuAAC) reaction. The cross-linked porphyrin-Kraft pulp material was characterized by infrared and by XPS spectroscopy analyses, which proved the covalent linkage between the porphyrin and propargylated Kraft pulp fibers. The antimicrobial activity of this material was tested under visible light irradiation with a low light dose (9.5 J/cm2) against Staphylococcus aureus and Pseudomonas aeruginosa. The two bacterial strains deposited on the resulting photosensitizing Kraft pulp are efficiently killed after illumination. Such materials could find applications in industrial, household and medical environments as an alternative to overcome the widespread microbial multiresistance to classical treatments
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https://hal-unilim.archives-ouvertes.fr/hal-01257403
Contributeur : Vincent Sol <>
Soumis le : samedi 16 janvier 2016 - 18:17:18
Dernière modification le : mercredi 15 juillet 2020 - 10:01:49

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Jean-Kerim Nzambe Ta Keki, Tan-Sothea Ouk, Rachida Zerrouki, Pierre-Antoine Faugeras, Vincent Sol, et al.. Synthesis and photobactericidal properties of a neutral porphyrin grafted onto lignocellulosic fibers . Materials Sciences and Engineering: C, 2016, 62, pp.61-67. ⟨10.1016/j.msec.2016.01.028⟩. ⟨hal-01257403⟩

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