Nikolay MCHEDLOV-PETROSSYAN is Head of the Department of Physical Chemistry, School of Chemistry, V. N. Karazin Kharkiv National University. Education: Master Sci. 1971–1976, Chemical Faculty, Candidate of Sci. (=Ph.D.), 1976–1979, Chemical Faculty, Kharkov State University, USSR. Dr. Sci., Chemistry, 1992, Institute of Nonaqueous Solution Chemistry, Russian National Acad. Sci. Employment in V. N. Karazin Kharkiv National University: 1980–1992: Researcher, Senior Researcher of the Research Institute of Chemistry; 1992–1999: Associated Professor of the Department of Physical Chemistry, 1999–til now: Professor of the Department of Physical Chemistry; 2000–til now: Head of the Department of Physical Chemistry. October 2008: invited lecturer in Germany: Philipps University of Marburg, Technical University of Chemnitz, and University of Bremen. Research interests: physical chemistry of lyophilic colloids; surfactant micelles and related systems; adsorption from solutions; lyophobic colloid systems: aggregative stability and coagulation; nanocarbon structures in solution; fullerenes, carbon nanotubes, and nanodiamonds; ionic equilibria in non-aqueous solvents; ionic equilibria of xanthenes and triphenylmetine dyes in liquids. Memberships of professional societies and awards received: Corresponding Member of the National Acad. Sci. of Ukraine, Honored Scientist of Ukraine, the State Prize of Ukraine in the Field of Science and Technique Laureate.