1 Centre for Biomacromolecular and Bioanalogous Systems, Department of Biomedicinal Polymers, Institute of Macromolecular Chemistry Academy of Sciences CR, v.v.i., Heyrovskeho sq. 2, Prague, Czech Republic. Electronic address: kostka@imc.cas.cz.
2 Pharmaceutical Biotechnology, Center for System-based Drug Research, Department of Pharmacy, Butenandtstraße 5-13, Building D, 81377 München, Germany.
3 Centre for Biomacromolecular and Bioanalogous Systems, Department of Biomedicinal Polymers, Institute of Macromolecular Chemistry Academy of Sciences CR, v.v.i., Heyrovskeho sq. 2, Prague, Czech Republic.