1. Institute of Biostructures and
Bioimages—Catania, National Research Council, Via Paolo Gaifami 8, 95126 Catania, Italy
2. Department of Chemical Sciences, University of Napoli “Federico II”, Via Cintia 4, I-80126 Napoli, Italy
3. Department of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
4. Department of Physics, Tampere University of Technology, P.O.
Box 692, FI-33101 Tampere, Finland
5. STMicroelectronics, Stradale Primosole 50, 95121 Catania, Italy
6. Dipartimento di Scienze
Chimiche, Università degli Studi di Catania, Viale Andrea
Doria 6, 95125 Catania, Italy
7. IRCCS-Istituto di Ricerche Farmacologiche “Mario Negri”, Via Giuseppe La Masa 19, 20156, Milano, Italy
8. Institute for Microelectronics
and Microsystems, National Research Council, Stradale Primosole 50, 95121 Catania, Italy