1 Rizzoli Orthopaedic Institute, NanoBiotechnology Laboratory, Via di Barbiano 1/10, 40136 Bologna, Italy.
2 Department of Surgery, Medicine, Dentistry and Morphological Sciences, University of Modena and Reggio Emilia, Via del Pozzo 71, 41124 Modena, Italy.
3 Rizzoli Orthopaedic Institute, Laboratory of Biomechanics and Technology Innovation, Via di Barbiano 1/10, 40136 Bologna, Italy.