1. Institute of Materials Science & Nanotechnology, UNAM-National Nanotechnology Research Center, Bilkent University, Cankaya, Ankara 06800, Turkey
2. Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, Maslak, Istanbul 34469, Turkey
3. Fiber Science Program, Department of Human Centered Design, College of Human Ecology, Cornell University, Ithaca, NY 14853, USA