Triazinyl porphyrin-based photoactive cotton fabrics: preparation, characterization, and antibacterial activity.

Abstract : In the present work, we report on the synthesis of cellulose cotton fibers bearing different types of photosensitizers with the aim to prepare new efficient polymeric materials for antimicrobial applications. Anionic, neutral, and cationic amino porphyrins have been covalently grafted on cotton fabric, without previous chemical modification of the cellulosic support, using a 1,3,5-triazine derivative as the linker. The obtained porphyrin-grafted cotton fabrics were characterized by infrared (ATR-FTIR), diffuse reflectance UV-vis (DRUV) spectroscopies, and thermogravimetric analysis (TGA) to confirm the triazine linkage. Antimicrobial activity of porphyrin-cellulose materials was tested under visible light irradiation against Staphylococcus aureus and Escherichia coli . The results showed excellent activity on the Gram-positive bacterium, showing structure-activity relationship, although no photodamage of the Gram-negative microorganism was recorded. A mechanism of bacterial inactivation by photosensitive surfaces is proposed.
Type de document :
Article dans une revue
Liste complète des métadonnées

https://hal-unilim.archives-ouvertes.fr/hal-00697184
Contributeur : Claire Douady <>
Soumis le : lundi 14 mai 2012 - 17:05:25
Dernière modification le : mardi 20 mars 2018 - 16:36:21

Identifiants

Collections

Citation

Cyril Ringot, Vincent Sol, Matthieu Barrière, Naïma Saad, Philippe Bressollier, et al.. Triazinyl porphyrin-based photoactive cotton fabrics: preparation, characterization, and antibacterial activity.. Biomacromolecules, American Chemical Society, 2011, 12 (5), pp.1716-1723. ⟨10.1021/bm200082d⟩. ⟨hal-00697184⟩

Partager

Métriques

Consultations de la notice

228