1. Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Heyrovského nám. 2, CZ-16206 Prague 6, Czech Republic
2. Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, CZ-14220 Prague 4 Czech Republic
3. Department of Health Care Disciplines and Population Protection, Faculty of Biomedical Engineering, Czech Technical University in Prague, Sítná Sq. 3105, CZ-27201 Kladno, Czech Republic
4. Institute of Biotechnology and Helmholtz Institute for Biomedical Engineering, RWTH Aachen, Pauwelstr. 20, D-52079 Aachen, Germany