Prof. Dr.-Ing. Ralf Prtner studied chemical engineering at the University of Dortmund and received his doctorate there at the Department of Mechanical Process Engineering. After a post-doctoral study at the University of Tsukuba, Japan, he took on the role of senior engineer and head of the working group "Cell Culture and Tissue Engineering" at the Technical University of Hamburg. After his habilitation in 1997 he was appointed Privatdozent. Since 2010 he is Honorary Professor at TH Mittelhessen University of Applied Sciences, Giessen. He is currently one of the coordinators of the research focus "Regeneration, Implants and Medical Technology" of the Technical University of Hamburg and member of the directorate of the Research Center Medical Technology (FMTHH). Research activities include the development of bioreactors, in particular for cell cultures and microbial reactions, as well as model-based control concepts, and tissue engineering.