1. Department of Physics
2. Lomonosov Moscow State University
3. 119991 Moscow
4. Russian Federation
5. Nanoscale Physics, Chemistry, and Engineering Research Laboratory
6. University of Birmingham
7. Birmingham B15 2TT
8. UK
9. Institute of Theoretical and Experimental Biophysics
10. Russian Academy of Science
11. 142290 Pushchino
12. Institute for Biological Instrumentation of Russian Academy of Sciences