Department of Drug Sciences, University of Catania.|Etna Biotech S.R.L, via Vincenzo Lancia, 57 - Zona Industriale Blocco Palma 1.|Parco Scientifico E Tecnologico Della Sicilia, via Vincenzo Lancia, 57 - Zona Industriale Blocco Palma 1.|Parco Scientifico E Tecnologico Della Sicilia, via Vincenzo Lancia, 57 - Zona Industriale Blocco Palma 1.|Department of Mathematics and Computer Science, University of Catania.|Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy.|Department of Drug Sciences, University of Catania.|Parco Scientifico E Tecnologico Della Sicilia, via Vincenzo Lancia, 57 - Zona Industriale Blocco Palma 1.|Department of Pharmaceutical Sciences, University of Milan, Milan, Italy.|Softeco Sismat, Italy.|Department of Mathematics and Computer Science, University of Catania.