1. Department of Biomedical Technology, Faculty of Biomedical Engineering, Czech Technical University in Prague, Sítna sq. 3105, 27201 Kladno, Czech Republic
2. Institute for Materials Research, Material Physics Division University of Hasselt, Wetenschapspark 1, B 3590 Diepenbeek, Belgium
3. Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 166 10 Prague, Czechia
4. IMOMEC division of MEC, Wetenschapspark 1, B 3590 Diepenbeek, Belgium
5. FZU - Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic