1. Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d’Alcontres 31, 98166 Messina, Italy
2. STmicroelectronics, Stradale Primosole, 50, 95121 Catania, Italy
3. Distretto Tecnologico Micro e Nano Sistemi Sicilia, Strada VII-Zona Industriale, 95121 Catania, Italy
4. Neurology Clinic, Department “G.F. Ingrassia”, Section of Neurosciences, University of Catania, Via Santa Sofia 78, 95123 Catania, Italy