Characteristics of corneal lens chitin in dragonfly compound eyes

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dc.authoridSargin, Idris -- 0000-0003-3785-9575; Kaya, Murat -- 0000-0001-6954-2703
dc.contributor.authorKaya, Murat
dc.contributor.authorSargın, İdris
dc.contributor.authorAl-jaf, Ivan
dc.contributor.authorErdoğan, Sevil
dc.contributor.authorArslan, Gülşin
dc.date.accessioned13.07.201910:50:10
dc.date.accessioned2019-07-29T19:30:15Z
dc.date.available13.07.201910:50:10
dc.date.available2019-07-29T19:30:15Z
dc.date.issued2016
dc.departmentSabire Yazıcı Fen-Edebiyat Fakültesi
dc.description.abstractChitin in the compound eyes of arthropods serves as a part of the visual system. The quality of chitin in such highly specialised body parts deserves more detailed examination. Chitin in the corneal (ommatidial) lenses of dragonfly (Sympetrum fonscolombii) compound eyes was isolated by using the classical chemical method. The chitin content of the corneal lenses was determined to be quite high (20.3 +/- 0.85%). The FT-IR analysis showed that corneal lens chitin was in the alpha-form as found in all arthropod species where mechanical strength is required. The surface morphology analysis by scanning electron microscopy revealed that the outer part of corneal lenses consisted of long chitin fibrils with regular arrays of papillary structures while the smoother inner part had concentric lamellated chitin formation with shorter chitin nanofibrils. Chitinase enzymatic digestion studies, elemental analysis results and the degree of acetylation value showed the purity of chitin samples from corneal lens. The maximum degradation temperature value of the corneal lens chitin was observed at 369.2 degrees C. X-ray analysis revealed that corneal lens chitin has high crystallinity index; 96.4%. Identification of chitin found in ommaditia of insect compound eyes can provide insights into insect vision and chitin-based optical material design studies.
dc.identifier.doi10.1016/j.ijbiomac.2016.04.056
dc.identifier.endpage61en_US
dc.identifier.issn0141-8130
dc.identifier.issn1879-0003
dc.identifier.pmid27109757
dc.identifier.scopusqualityQ1
dc.identifier.startpage54en_US
dc.identifier.urihttps://doi.org/10.1016/j.ijbiomac.2016.04.056
dc.identifier.urihttps://hdl.handle.net/20.500.12451/6254
dc.identifier.volume89en_US
dc.identifier.wosWOS:000378951400007
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherElsevier Science Bv
dc.relation.ispartofInternational Journal of Biological Macromolecules
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectInsect Vision
dc.subjectCompound Eyes
dc.subjectOmmatidium
dc.titleCharacteristics of corneal lens chitin in dragonfly compound eyes
dc.typeArticle

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