1. Department of Nonlinear Phenomena, Institute of Physics, Otto von Guericke University, Universitätsplatz 2, D-39106 Magdeburg, Germany
2. Department Theory of Soft Matter/Biophysics, Institute of Physics, Otto von Guericke University, Universitätsplatz 2, D-39106 Magdeburg, Germany
3. Department of Engineering, Drandenburg University of Applied Sciences, Magdeburger Straße 50, D-14770 Brandenburg, Germany