1. Division of Molecular Pediatrics, Department of Pediatrics, University Hospital Erlangen, 91054 Erlangen, Germany
2. Department of Materials Science WW4-LKO, Friedrich-Alexander University of Erlangen Nürnberg, 91054 Erlangen, Germany
3. Laboratory of Physics, Faculty of Electrical Engineering, University of Ljubljana, Tržaška 25, Ljubljana SI-1000, Slovenia
4. Laboratory of Clinical Biophysics, Faculty of Medicine, University of Ljubljana, Vrazov Trg 2, Ljubljana 1000, Slovenia
5. Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacky University, Olomouc 779 00, Czech Republic