Modification of the bacterial adhesion of Staphylococcus aureus by antioxidant blooming on polyurethane films

Johanna Saunier (1) , Jean-Marie Herry (2) , Christian Marliere (3) , Margareth Renault (2) , Marie-Noëlle Bellon-Fontaine (2) , Najet Yagoubi (1)

1 IFR141
2 MICALIS - MICrobiologie de l'ALImentation au Service de la Santé
3 ISMO - Institut des Sciences Moléculaires d'Orsay

Medical device-related infections are a major problem in hospital. The risk of developing an infection is linked to the bacterial adhesion ability of pathogen strains on the device and their ability to form a biofilm. Here we focused on polymer surfaces exhibiting a blooming of antioxidant (Irganox 3114® and Irganox 1076®) on their surface. We tried to put into evidence the effect of such a phenomenon on the bacterial adhesion in terms of number of viable cultivable bacteria and bacteria localization on the surface. We showed that the blooming has a tendency to increase the Staphylococcus aureus adhesion phenomenon in part for topographic reasons.

Keywords: bacterial adhesion; blooming; polyurethane; afm; antioxidant

Keywords: staphylococcus aureus

Domains: Life Sciences [q-bio]

Johanna Saunier, Jean-Marie Herry, Christian Marliere, Margareth Renault, Marie-Noëlle Bellon-Fontaine, et al.. Modification of the bacterial adhesion of Staphylococcus aureus by antioxidant blooming on polyurethane films. Materials Science and Engineering: C, 2015, 56, pp.522-531. ⟨10.1016/j.msec.2015.07.009⟩. ⟨hal-01569038⟩