Born on November 11, 1953 in Heidelberg. Study of physics at Heidelberg Univ. (1972-1978), doctorate Munich Univ. (1982), research associate at Cornell Univ. (1984-1986), German Habilitation Munich Univ. (1987), Associate Professor Munich Univ. (1989-1990), Full Professor Cologne Univ. in conjunction with position as a director at the Jülich Research Centre (1990-1995), Director and Scientific Member at the Max Planck Institute of Colloids and Interfaces (since 1993), Honorary Professor at the University of Potsdam (since 1995).