Starting January 2000 the research cooperation biomaterials (FORBIOMAT) kicked off for the second time around. Therewith the government of Bavaria supports the development and improvement of biomaterials, i.d. materials for implants, for another two years. In Germany, the manufactoring of implants is a domain of small- and medium-sized companies, competing with large foreign companies, especially from US. The research cooperation, initiated by the bavarian state ministry of science, research and art in 1996, set its main focus on the development of implants and implant components for orthopaedics and dentistry during the first sponsoring period. The research and develeopment projects cover the natural scientific characterization of polymers, metals and ceramics as well as the mechanical, physical and chemical characterization of the surface. The interfaculty teamwork among biologists, chemists, physicists, material scientists and physicians is exemplary in the field of research and development of biocompatible materials. In FORBIOMAT the materials themselves are in the center of attention; the spectrum of requirements is given by the function and the location of the implant. The volume materials have to meet the mechanical requirements, the surfaces - at best and additionally to their passive properties - have to "communicate" with parts of the biological environment.