1. Laboratory of Metals in Medicine (MetMed), Department of Chemistry “U. Schiff”; University of Florence; Via della Lastruccia 3 50019 Sesto Fiorentino Italy
2. Department of Chemistry and Industrial Chemistry (DCCI); University of Pisa; Via Moruzzi 13 56124 Pisa Italy
3. Department of Experimental and Clinical Medicine (DMSC); University of Florence; Largo Brambilla 3 50134 Firenze Italy
4. Microbiology and Virology Unit; Azienda Ospedaliero-Universitaria Careggi (AOUC); Largo Brambilla 3 50134 Firenze Italy
5. Department of Health Sciences (DSS); University of Florence; Viale Pieraccini 6 50139 Florence Italy