1. Department of Industrial Chemistry “Toso Montanari”
2. University of Bologna
3. 40136 Bologna, Italy
4. Institute of Applied Physics “Nello Carrara”
5. National Research Council
6. 50019 Sesto Fiorentino, Italy
7. Istituto Toscano Tumori
8. Core Research Laboratory and Istituto di Fisiologia Clinica
9. Consiglio Nazionale delle Ricerche
10. Siena, Italy