1. Institute for Interfacial Process Engineering and Plasma Technology IGVP, University of Stuttgart, Stuttgart, Germany
2. Department of Orthopedics, Medical University Graz, Graz, Austria
3. Chair Tissue Engineering and Regenerative Medicine, University Hospital Wuerzburg, Wuerzburg, Germany
4. Fraunhofer Institute for Interfacial Engineering and Biotechnology, Stuttgart, Germany Department
5. FH Esslingen, Esslingen am Neckar, Germany
6. Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Stockholm, Sweden