1. Faculty of Applied Chemistry and Material Science, POLITEHNICA University of Bucharest, Gh Polizu Street 1-7, 011061 Bucharest, Romania
2. Faculty of Power Engineering, Department of Hydraulics, Hydraulic Machinery and Environmental Engineering, POLITEHNICA University of Bucharest, 313 Splaiul Independentei, District 6, 060042 Bucharest, Romania
3. Academy of Romanian Scientists, Ilfov st 3, 050054 Bucharest, Romania
4. Faculty of Biology, Microbiology Immunology Department, University of Bucharest, 1-3 Portocalelor Lane, District 5, 77206 Bucharest, Romania