1. Prolabin & Tefarm s.r.l., Via dell’Acciaio 9, 06134 Perugia, Italy
2. International Laboratory Ionomer Materials for Energy and Department of Industrial Engineering, Tor Vergata University of Rome, Via del Politecnico 1, 00133 Roma, Italy
3. Medical Microbiology Unit, Department of Medicine and Surgery, University of Perugia, Piazzale Severi, 1/8, 06129 Perugia, Italy