1. Department of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
2. Biochemistry Center, Heidelberg University, D-69120 Heidelberg, Germany
3. Computational Physics Laboratory, Tampere University, FI-33100 Tampere, Finland
4. Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
5. Institute of Biomedicine, Faculty of Medicine, University of Turku, FI-20014 Turku, Finland
6. Department of Applied Physics, University of Eastern Finland, P.O.B. 1627, FI-70211 Kuopio, Finland
7. Department of Medical Physics, Turku University Hospital, FI-20520 Turku, Finland
8. MEMPHYS − Center for Biomembrane Physics