1. Center for Microscopy-Microanalysis and Information Processing, National University of Science and Technology Politehnica Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
2. Department of Microbiology and Immunology, Faculty of Biology, Research Institute of the University of Bucharest, University of Bucharest, 060101 Bucharest, Romania
3. Department of Science, Roma Tre University, Viale G. Marconi 446, 00146 Rome, Italy
4. NBFC, National Biodiversity Future Center, Piazza Marina 61, 90133 Palermo, Italy
5. Research Lab of Advanced, Composite, Nano-Materials and Nanotechnology (R-NanoLab), School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou, 15773 Athens, Greece
6. Department of Engineering, Roma Tre University, Viale G. Marconi 446, 00146 Rome, Italy
7. Faculty of Physics, University of Vienna, Boltzmanngasse 5, A-1090 Vienna, Austria