1. Laboratory of Drug Delivery Technology – Department of Drug Sciences, University of Catania, Catania, Italy;
2. Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy;
3. Department of Chemistry, Biotechnology and Environmental Engineering, Aalborg University, Aalborg, Denmark;
4. National Research Council, CNR-ISMN, c/o Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy