1. Institute of Materials Science and Nanotechnology; National Nanotechnology Research Center, Bilkent University; Ankara 06800 Turkey
2. Department of Biology, Polatlı Faculty of Literature and Science; Gazi University; Ankara 06900 Turkey
3. Life Sciences Application and Research Center; Gazi University; Ankara 06830 Turkey
4. Department of Medical Biology and Genetics; Faculty of Medicine, Gazi University; Ankara 06560 Turkey