Born 1940 in Krefeld. Study of physical chemistry Basel Univ., doctorate (1971) and German Habilitation in biophysical chemistry Constance Univ. (1976), Heisenberg Scholarship (1979-1983), head of an independent working group at the Max Planck Institute of Biophysics (1983), Adjunct Professor Frankfurt Univ (1989), Professor of Biophysical Chemistry Frankfurt Univ. (1993), Director and Scientific Member at the Max Planck Institute of Biophysics (since 1993), Senior Investigator CEF Frankfurt (2008), Prof. Emeritus Univ. Frankfurt am Main (2009).