Dual role of tannic acid and pyrogallol incorporated in plaster of Paris: Morphology modification and release for antimicrobial properties - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue Materials Science and Engineering: C Année : 2021

Dual role of tannic acid and pyrogallol incorporated in plaster of Paris: Morphology modification and release for antimicrobial properties

Résumé

Abstract The design of bioactive plasters is of major interest for the amelioration of dental and bone cements. In this article, a one pot and environmentally friendly strategy based on the addition of a cheap polyphenol-tannic acid (TA) or the main phenolic constituent of TA, namely pyrogallol (PY)- able to interact with calcium sulfate is proposed. Tannic acid and pyrogallol not only modify the morphology of the obtained plaster+TA/PY composites but a part of it is released and provides strong-up to twenty fold- antibacterial effect against Staphylococcus aureus. It is shown that the higher antibacterial efficiency of PY is related to a greater release compared to TA even if in solution the antibacterial effect of PY is lower than that of TA when reported on the basis of the molar concentration in PY units.

Domaines

Biotechnologies
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Dates et versions

hal-03423162 , version 1 (13-06-2023)

Licence

Paternité - Pas d'utilisation commerciale

Identifiants

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Naji Kharouf, Davide Mancino, Jihed Zghal, Sophie Helle, Hamdi Jmal, et al.. Dual role of tannic acid and pyrogallol incorporated in plaster of Paris: Morphology modification and release for antimicrobial properties. Materials Science and Engineering: C, 2021, 127, pp.112209. ⟨10.1016/j.msec.2021.112209⟩. ⟨hal-03423162⟩
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