Effect of toluene extraction on Biomer™ surface: I. ESCA, ATR/FTIR, contact angle analysis and biological properties
Biomer™ is a poly(ether-urethane-urea) block copolymer widely used as biomedical devices. Extraction process of this polymer has purified its surface of low molecular weight polyurethane chains and Santowhite Powder additive. ESCA and ATR/FTIR have suggested a homogenization of
the polymer by enrichment of the first layers with poly(aminomethacrylate) additive after extraction. Therefore, the surface of the extracted Biomer™ exhibits a different wettability and biological response. The treatment causes a significant decrease in fibronectin adsorption and induces
a reduction in Staphylococcus aureus adhesion.
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Document Type: Research Article
Group of Applied Physics, University of Geneva, 20 rue de l'Ecole de Medecine, 1211 Geneva 4, Switzerland
Group of Applied Physics, University of Geneva, 20 rue de l'Ecole de Medecine, 1211 Geneva 4, Switzerland, Division of Infectious Disease, University Hospital of Geneva, 1211 Geneva 4, Switzerland
Department of Chemistry, University of Siena, Pian dei Mantellini 44, 53100 Siena, Italy
Department of Materials, Federal Institute of Technology, 1015 Lausanne, Switzerland
Division of Infectious Disease, University Hospital of Geneva, 1211 Geneva 4, Switzerland
Publication date: 1996-01-01