1. Department of Biomaterials
2. Radboud Institute for Molecular Life Sciences
3. Radboud University Medical Center
4. 6525 EX Nijmegen
5. The Netherlands
6. Dipartimento di Chimica
7. Università degli Studi di Bari Aldo Moro
8. 70125 Bari
9. Italy
10. Department of Solid State NMR
11. Institute for Molecules and Materials
12. Radboud University
13. 6525 AJ Nijmegen
14. Institute of Science and Technology for Ceramics (ISTEC)
15. National Research Council (CNR)
16. 48018 Faenza