Regensburg 2010 – wissenschaftliches Programm

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DS: Fachverband Dünne Schichten

DS 9: Poster: Synthesis of Nanostructured Films by Self-organization, Thermoelectric Thin Films and Nanostructures, High-k and Low-k Dielectrics, Layer Deposition Processes, Layer Growth, Layer Properties, Application of Thin Films, Surface Modification, Hard and Superhard Coatings, Metal Layers

DS 9.38: Poster

Montag, 22. März 2010, 15:00–17:30, Poster D1

Deposition of multi-structural biocompatible thin films with an antimicrobial effect by pulsed magnetron sputtering — •Vitezslav Stranak^1,2, Marion Quaas¹, Martin Cada², Zdenek Hubicka², Carmen Zietz³, Kathleen Arndt⁴, Rainer Bader³, Andre Podbielski⁴, and Rainer Hippler¹ — ¹University of Greifswald, Institute of Physics, Felix-Hausdorff-Str. 6, 17489 Greifswald, Germany — ²Academy of Sciences of the Czech Rep., Institute of Physics, Na Slovance 2, 18221 Praha 8, Czech Republic — ³University of Rostock, Department of Orthopaedics, Doberaner Str. 142, 18057 Rostock, Germany — ⁴University of Rostock, Dept. of Med. Microbiol., Vir. and Hyg., Schillingallee 70, 18057 Rostock, Germany

The aim of our work is to produce materials and surfaces for medical devices such as endoprosthetic implants, which combine good cellular adhesion of osteoblasts at the surface with distinguished antimicrobial effects. Our actual approach is to insert Cu as a metal with known antimicrobial properties into the surface of titanium substrates. Crystallographic phases of deposited thin films are investigated by grazing incidence x-ray diffractometry (XRD) and chemical composition is estimated by x-ray photoelectron spectroscopy (XPS). Plasma properties are characterized by time-resolved Langmuir probe measurement, ion particle flux and total energy flux measurements. The combination of these diagnostic methods enables an extensive characterization of the films and also agents responsible for formation of thin films. The work is supplemented by measurements of copper release and antimicrobial effects to give a survey of bio-properties of the thin films.