1. Laboratory of Inorganic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou, Athens, Greece;
2. Institute of Biosciences & Applications, National Center for Scientific Research “Demokritos”, Aghia Paraskevi, Athens, Greece;
3. Institute of Nanoscience and Nanotechnology, National Center for Scientific Research “Demokritos”, Aghia Paraskevi, Athens, Greece