Article type: Research Article
Authors: İde, Semra; | Haman Bayarı, Sevgi | Türkeş, Tuncay | Mergen, Y. Orhan | Çelik, Ömer | Bütün, Vural | Sargon, Mustafa F. | Kocatepe, Neslihan | Kriechbaum, Manfred
Affiliations: Faculty of Engineering, Department of Physics Eng., Hacettepe University, Beytepe, Ankara, Turkey | Faculty of Education, Department of Physics, Hacettepe University, Beytepe, Ankara, Turkey | Faculty of Science, Department of Biology, Niğde University, Niğde, Turkey | Faculty of Science, Department of Biology, Hacettepe University, Beytepe, Ankara, Turkey | Faculty of Science and Art, Department of Physics, Harran University, Sanlıurfa, Turkey | Faculty of Art and Science, Department of Chemistry, Eskişehir Osmangazi University, Meşelik, Eskisehir, Turkey | Medicine Faculty, Department of Anatomy, Hacettepe University, Sıhhiye, Ankara, Turkey | Institute of Biophysics and Nanosystem Research, Austrian Academy of Sciences, Graz, Austria
Note: [] Corresponding author: Prof. Semra İde, Faculty of Engineering, Department of Physics Eng., Hacettepe University, 06800 Beytepe, Ankara, Turkey. Tel.: +90 312 297 7248; Fax: +90 312 299 2037; E-mail: side@hacettepe.edu.tr.
Abstract: Various experimental methods (XRD, FTIR, SAXS, DLS and SEM) were used to investigate structures of the silk samples weaved by spiders in Turkey. Silk samples were collected from the natural habitats belonging to the spider species (i.e., Near Salt Lake/Şereflikoçhisar, İvriz Dam/Ereğli-Konya, Karataş Lake/Burdur and several locations in Black Sea Region of Turkey). Among all collected species, Araneidae (Araneus angulatus, Argiope bruennichi, Argiope lobata, Larinoides cornutus), Eresidae (Eresus cinnaberinus), Agelenidae (Agelena labyrinthica), Oecobidae (Uroctea durandi), Miturgidae (Cheiracanthium erraticum), Salticidae (Heliophanus flavipes, Philaeus chrysops), Theridiidae (Steatoda paykulliana) and Gnaphosidae were found significant amongst other spider species. Structural differences and similarities of these species were reported. Diameter range of draglines, inter crystallite distance of nano-size structures, mean size range of nano-structure aggregations, crystallite size range, information about protein content were obtained. The mechanical properties of some silk fibers were also investigated.
Keywords: Spider silk, XRD, FTIR, scattering methods, SEM, mechanical testing
DOI: 10.3233/SPE-2011-0495
Journal: Spectroscopy, vol. 25, no. 3-4, pp. 155-167, 2011
