1. Department
of Physics and Astronomy, University of Turku, FI-20014 Turku, Finland
2. Laboratory
of Electron Microscopy, University of Turku, FI-20014 Turku, Finland
3. Division
of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00014 Helsinki, Finland
4. INEB—Instituto
de Engenharia Biomédica, University of Porto, Rua do Campo
Alegre, 823, 4150-180 Porto, Portugal
5. ICBAS—Instituto
Ciências Biomédicas Abel Salazar, University of Porto, Rua de Jorge Viterbo Ferreira, 4050-313 Porto, Portugal