1. II Orthopaedic and Traumatology Clinic, Biomechanics and Technology Innovation Laboratory, Rizzoli Orthopaedic Institute, Via di Barbiano No. 1/10, 40136 Bologna, Italy
2. Nano-Biotechnology Laboratory, Rizzoli Orthopaedic Institute, Via di Barbiano No. 1/10, 40136 Bologna, Italy