1. NMR SpectroscopyBijvoet Center for Biomolecular ResearchDepartment of ChemistryFaculty of ScienceUtrecht University Padualaan 8, 3584 CH Utrecht The Netherlands
2. Fondazione IRCCS Casa Sollievo della SofferenzaUnita' di Ingegneria Tissutale Viale Cappuccini 1 71013 San Giovanni Rotondo Italy
3. ASST Grande Ospedale Metropolitano NiguardaCenter for Nanomedicine and Tissue Engineering Piazza dell'Ospedale Maggiore 3 20162 Milan Italy