Peter-Diedrich Hansen, Univ.-Prof. em. for Eco-Toxicology at the TU Berlin, Dir.u. Prof. a.D. Federal Health Office,. Areas of research are early warning systems, whole cell biosensors and bioanalytical methods, applications for effects monitoring in coastal-, inland waters and under extreme environments (PI of the ESA project “immunological and cellular responses under microgravity and space radiation (ISS) – development of a biosensor with phagocotic cells?).