1. National Research Council of Italy
2. Institute of Applied Sciences and Intelligent Systems 'E. Caianiello'
3. Pozzuoli
4. Italy
5. Department of Mathematics and Physics
6. Institute of Biophysics
7. 16149 Genova
8. Department of Structures for Engineering and Architecture
9. University of Naples Federico II
10. 80125 Naples
11. Department of Chemical
12. Materials and Production Engineering University of Naples Federico II