1. Division of Pharmaceutical Technology,
Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland
2. Laboratory of Industrial Physics, Department
of Physics, University of Turku, FI-20014 Turku, Finland
3. Department of Physics, School of Engineering
and Applied Science, Harvard University, Massachusetts 02138, United States
4. Pharmaceutical
Sciences Laboratory, Department of Biosciences, Åbo Akademi University, FI-20520 Turku, Finland