1. University of Trieste, Department of Chemical and Pharmaceutical Sciences, via L. Giorgeri 1, 34127 Trieste, Italy
2. Maxillofacial and Dental Surgical Clinic, Department of Medical, Surgical and Health Sciences, University of Trieste, Piazza dell'Ospitale 1, 34125, Trieste, Italy
3. Raman Spectroscopy Lab, Department of Engineering and Architecture, University of Trieste, via A. Valerio 6a, 34127 Trieste, Italy