1. CICECO–Aveiro Institute of Materials Chemistry Department University of Aveiro Campus de Santiago Aveiro 3810‐193 Portugal
2. Drug Research Program Division of Pharmaceutical Chemistry and Technology Faculty of Pharmacy University of Helsinki Helsinki FI‐00014 Finland
3. Department of Biomedical Engineering University Medical Center Groningen/University of Groningen Ant. Deusinglaan 1 Groningen 9713 AV The Netherlands
4. W.J. Kolff Institute for Biomedical Engineering and Materials Science University Medical Center Groningen/University of Groningen Ant. Deusinglaan 1 Groningen 9713 AV The Netherlands