AVS 58th Annual International Symposium and Exhibition
    Biomaterial Interfaces Division Thursday Sessions
       Session BI-ThM

Paper BI-ThM6
Amino-rich Plasma Polymer Films Prepared by RF Magnetron Sputtering

Thursday, November 3, 2011, 9:40 am, Room 108

Session: Biomedical Materials
Presenter: Francois Rossi, European Commission, JRC. Institute for Health and Consumer Protection, Italy
Authors: J. Hanuš, European Commission, JRC. Institute for Health and Consumer Protection, Italy
G. Ceccone, European Commission, JRC. Institute for Health and Consumer Protection, Italy
F.J. Rossi, European Commission, JRC. Institute for Health and Consumer Protection, Italy
Correspondent: Click to Email
RF magnetron sputtering of nylon 6.6 was used for the deposition of nitrogen rich films. Deposition was followed by N2 H2 plasma post-treatment to enhance primary amine concentration on the surface. Maximal reached NH2 concentration was 11 % with aminoselectivity 13.5 %. The films exhibited small negative z-potential at basic pH with isoelectric point ~ pH 4.5. Bio properties of the films were tested by QCM in terms of ability to adsorb different proteins and their antigens. The interaction between the film and the buffer solution was also studied and compared to other films such as poly-acrylic acid and PEO plasma polymers. The results show that these films are stable and can be used as a platform where positively charged surfaces are needed