1. Nanobiosensorics Laboratory, Institute of Technical Physics and Materials Science, HUN-REN Centre for Energy Research, Konkoly-Thege út 29-33, Budapest H-1121, Hungary
2. Department of Automation and Applied Informatics, Faculty of Electrical Engineering and Informatics, Budapest University of Technology and Economics, Műegyetem rkp. 3, Budapest H-1111, Hungary
3. Department of Biological Physics, Eötvös University, Pázmány Péter stny. 1/A, Budapest H-1117, Hungary