1. a Research Centre for Medical Polymers and Biomaterials, Georgian Technical University, P.O. Box 24, Tbilisi 0179, Georgia, USA
2. b Research Centre for Medical Polymers and Biomaterials, Georgian Technical University, P.O. Box 24, Tbilisi 0179, Georgia, USA
3. c Molecule Structure Research Center, National Academy of Sciences of Armenia, Azatutyan Avenue 26, Yerevan-14, Armenia, USA
4. d Fiber and Polymer Science Program, Department of Textiles & Apparel Design, Cornell University, Ithaca, NY 14853-4401, USA; Biomedical Engineering Program, Cornell University, Ithaca, NY 14853-4401, USA
5. e Research Centre for Medical Polymers and Biomaterials, Georgian Technical University, P.O. Box 24, Tbilisi 0179, Georgia, USA