1. Nanotechnology and Nanomedicine Division, Institute of Science, Hacettepe University, Ankara 06800, Turkey
2. Micro and Nanotechnology Division, Graduate School of Natural and Applied Sciences, Middle East Technical University, Ankara 06800, Turkey
3. Bioengineering Division, Institute of Science & Center for Bioengineering, Hacettepe University, Ankara 06800, Turkey