1. Centro Interdipartimentale “Biopharmanet-tec”, University of Parma, 43124 Parma, Italy
2. Department of Biology and Biotechnology “Lazzaro Spallanzani”, University of Pavia, 27100 Pavia, Italy
3. Centro Interdipartimentale Misure (CIM) “G. Casnati”, University of Parma, 43124 Parma, Italy