1. Department of Chemistry “Ugo Schiff” and CSGI, University of Florence, via della Lastruccia 3-13, 50019 Sesto Fiorentino, Italy
2. BST Biomedical Science and Technologies Lab, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
3. Laboratory of Nanobiotechnology (NaBi), IRCSS Istituto Ortopedico Rizzoli, via di Barbiano 1/10, 40136 Bologna, Italy
4. Department of Biomedical and Neuromotor Sciences, University of Bologna, 40127 Bologna, Italy