CHARACTERIZATION OF THE BACTERICIDAL EFFECTS OF A COPPER DEPOSITION ON WOOD SUBSTRATE
ARCE VELASQUEZ JUAN DAVID, PROROT AUDREY 1*, OUK-SOTHEA TAN 2, DENOIRJEAN ALAIN 3, DAGOT CHRISTOPHE, LEPRAT PATRICK 1 1. Groupement de Recherche Eau Sol et Environnement (GRESE), Université de Limoges, France
2. Laboratoire de Chimie des Substances Naturelles LCSN, EA1069, Université de Limoges, France
3. CENTRE EUROPEEN de la CERAMIQUE SPCTS - UMR CNRS 7315, Limoges, France,
*Corresponding author, courriel prorot@ensil.unilim.fr
This study aims to characterize the antimicrobial properties of copper coatings deposited by thermal spraying (plasma and wire-arc) on a wood substrate. The antimicrobial properties of these deposits were evaluated for different bacterial strains: E. coli, S. epidermis, E. faecalis, B. subtilis. The structural characterization of the deposits showed that they were continuous but revealed differences in their chemical composition. These observations were correlated with microbiological results. Deposits obtained after plasma spraying, without copper oxide have less important bactericidal properties.
