1. Faculty of Science, University of South Bohemia, Branišovská 1760, 37005 České Budějovice, Czech Republic
2. Center for Nanobiology and Structural Biology, Institute of Microbiology, Academy of Sciences of the Czech Republic, Zamek 136, 37333 Nové Hrady, Czech Republic
3. Department of Physical Chemistry, Faculty of Chemistry, Kharazmi University, Tehran 15719-14911, Iran