I.H. Ozata, M.D., PhD student, Koc Universitesi, Istanbul, Istanbul, TURKEY|A.S. Guzel, K. Kocabas, PhD student, Gebze Teknik Universitesi, Gebze, TURKEY|Y. Akkoc, D.G. Ozturk, Postdoctoral Researcher, Koc Universitesi, Istanbul, Istanbul, TURKEY|D. Gozuacik, Research Professor, KoƧ University School of Medicine, Koc Universitesi, Istanbul, Istanbul, TURKEY|T. Cakir, Associate Professor, Department of Bioengineering,, Gebze Teknik Universitesi, Gebze, Kocaeli, TURKEY|E. Balik, Professor of General Surgery, Koc University School of Medicine, Koc Universitesi, Istanbul, Istanbul, TURKEY|