1. Department of Physics and INSTM Unit, University of Pavia, Pavia, Italy
2. Department of Medical Physics, IRCCS Policlinico S. Matteo Foundation, Pavia, Italy
3. Department
of Biology and Biotecnology “Lazzaro Spallanzani”, University of Pavia, Pavia, Italy
4. CNR-ISTM, Padova, Italy
5. Department
of Chemistry and INSTM Unit, University of Florence, Sesto Fiorentino (FI), Italy
6. Institute Charles Gerhardt Montpellier, CNRS, Chimie
Moléculaire et Organisation du Solide, Université Montpellier II, Montpellier, France
7. Department of Physics
and INSTM Unit, Università degli Studi di Milano, Milan, Italy