1. Faculty of Physics, Babeş-Bolyai University, M. Kogălniceanu 1, RO-400084 Cluj-Napoca, Romania
2. Centre of Nanostructured Materials and Bio-Nano Interfaces, Institute for Interdisciplinary Research on Bio-Nano-Sciences, Treboniu Laurian 42, RO-400271 Cluj-Napoca, Romania
3. Department of Applied and Environmental Chemistry, University of Szeged, Rerrich tér 1, HU-6720 Szeged, Hungary
4. Laboratory for Advanced Materials and Applied Technologies, Institute for Research, Development and Innovation in Applied Natural Sciences, Fântânele 30, RO-400294 Cluj-Napoca, Romania