1. Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 16206, Prague 6, Czech Republic
2. Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, Prague 2, Czech Republic
3. Center for Optical Materials Science and Engineering Technology (COMSET), Department of Materials Science and Engineering, Clemson University, Clemson, SC 29634, USA
4. Department of Bioengineering, Clemson University, Clemson, SC 29634, USA