Deposits of silver nanoparticle-containing plasma polymer. Prevention of biological surface contamination

Bernard Despax (1) , Claire Saulou-Berion (1, 2, 3) , Muriel Mercier-Bonin (3, 2) , Patrice Raynaud (4) , Sandrine Zanna (5) , Philippe Marcus (5) , Christophe Le Pen (6) , Patrick Choquet (6)

1 LAPLACE - LAboratoire PLasma et Conversion d'Energie
2 UT - Université de Toulouse
3 LISBP - Laboratoire d'Ingénierie des Systèmes Biologiques et des Procédés
4 LAPLACE-MPP - Matériaux et Procédés Plasmas
5 IRCP - Institut de Recherche de Chimie Paris
6 ArcelorMittal Research Liège

A process combining silver sputtering and plasma polymerization of hexamethyldisiloxane (HMDSO) was adjusted by HMDSO-pulsed injections. It produced stable coatings of silver-containing SiCO material deposited on stainless steel. The antibacterial activity of the silver-composite coatings was evaluated on the model bacteria Escherichia coli ATCC 10536. The bactericidal properties of the silver nanoparticle-containing plasma polymer were demonstrated. Indeed, a significant drop in viable bacterial count (> 4 log reduction) was observed, whatever the Ag content.

Domains: Plasmas; Materials; Bacteriology

Bernard Despax, Claire Saulou-Berion, Muriel Mercier-Bonin, Patrice Raynaud, Sandrine Zanna, et al.. Deposits of silver nanoparticle-containing plasma polymer. Prevention of biological surface contamination. 19th International Symposium on Plasma Chemistry, Achim von Keudell and Jorg Winter, Jul 2009, Bochum, Germany. ⟨hal-01563774⟩