1. Faculty of Engineering and Natural Sciences, Sabanci University, Orhanli, Tuzla, 34956 Istanbul, Turkey
2. Center of Excellence for Functional Surfaces and Interfaces for Nano-Diagnostics (EFSUN), Sabanci University, Orhanli, Tuzla, 34956 Istanbul, Turkey
3. Nanotechnology Research and Application Center (SUNUM), Sabanci University, Tuzla, 34956 Istanbul, Turkey
4. Department of Materials Science and Engineering, Izmir Institute of Technology, Gulbahce/Urla, 35430 Izmir, Turkey