1. Institute of Biophysics, Biological Research Centre; Hungarian Academy of Sciences; Szeged Hungary
2. Laboratoire Charles Coulomb L2C; UMR 5221, CNRS, Université de Montpellier; Montpellier France
3. Babes-Bolyai University; Faculty of Physics; Cluj-Napoca Romania
4. Institute of Life Sciences; Vasile Goldiş Western University; Arad Romania