1. Centre for Condensed Matter and Materials Physics, School of Physics and Astronomy, Queen Mary, University of London, London E1 4NS, United Kingdom
2. Electrical and Electronics Engineering, Bursa Orhangazi University, 16310 Yıldırım/Bursa, Turkey
3. Bio-Nanotechnology Research and Development Centre, Fatih University, 34500 Buyukcekmece, Istanbul, Turkey