1. ISOF-CNR, via P. Gobetti, 101, 40129 Bologna, Italy
2. Laboratory
of Photochemistry, Department of Drug Sciences, University of Catania, 95125 Catania, Italy
3. Department
of Chemical and Pharmaceutical Sciences, University of Ferrara, via L. Borsari, 46, 44121 Ferrara, Italy
4. Department
of Medical Sciences, University of Ferrara, corso Giovecca, 203, 44121 Ferrara, Italy
5. Department
of Bio-Medical and Biotechnological Sciences, Physiology Division, University of Catania, I-95125 Catania, Italy