1. Department of Public Health, Experimental Medicine and Forensics; University of Pavia; Pavia Italy
2. CIT, Tissue Engineering Center; University of Pavia; Pavia Italy
3. Dental school; University of Turin; Turin Italy
4. SHRO Center of Biotechnology; Temple University; Philadelphia Pennsylvania
5. Department of Occupational Medicine, Ergonomy and Disability, Nanotechnology Laboratory; Salvatore Maugeri Foundation, IRCCS; Pavia Italy