1. Department of Drug and Health Science, University of Catania, Viale A. Doria 6, 95125 Catania, Italy
2. Department of Molecular Medicine, Arabian Gulf University, Manama 329, Bahrain
3. Department of Mathematical and Computer Sciences, Physical Sciences and Earth Sciences, University of Messina, V.le F. Stagno D'Alcontres, 31 98166 Messina, Italy
4. National Council of Research, Institute for the Study of Nanostructured Materials (CNR-ISMN), URT of Messina c/o Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le F. Stagno d’Alcontres 31, 98166 Messina, Italy
5. Department of Microbiology & Immunology, Arabian Gulf University, Manama 329, Bahrain