1. Department of Physical Chemistry and Materials Science, University of Szeged, Aradi vértanúk tere 1, Szeged H-6720, Hungary
2. Institute of Biophysics, Biological Research Center, Temesvári krt. 62, Szeged H-6726, Hungary
3. Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1, Szeged H-6720, Hungary