Orientational order of Australian spider silks as determined by solid-state NMR.
A simple solid-state NMR method was used to study the structure of (13)C- and (15)N-enriched silk from two Australian orb-web spider species, Nephila edulis and Argiope keyserlingi. Carbon-13 and (15)N spectra from alanine- or glycine-labeled oriented dragline silks were acquired with the fiber axis...
| Asıl Yazarlar: | , , , , , |
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| Materyal Türü: | Journal article |
| Dil: | English |
| Baskı/Yayın Bilgisi: |
2006
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| _version_ | 1826256645638848512 |
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| author | Bonev, B Grieve, S Herberstein, M Kishore, A Watts, A Separovic, F |
| author_facet | Bonev, B Grieve, S Herberstein, M Kishore, A Watts, A Separovic, F |
| author_sort | Bonev, B |
| collection | OXFORD |
| description | A simple solid-state NMR method was used to study the structure of (13)C- and (15)N-enriched silk from two Australian orb-web spider species, Nephila edulis and Argiope keyserlingi. Carbon-13 and (15)N spectra from alanine- or glycine-labeled oriented dragline silks were acquired with the fiber axis aligned parallel or perpendicular to the magnetic field. The fraction of oriented component was determined from each amino acid, alanine and glycine, using each nucleus independently, and attributed to the ordered crystalline domains in the silk. The relative fraction of ordered alanine was found to be higher than the fraction of ordered glycine, akin to the observation of alanine-rich domains in silk-worm (Bombyx mori) silk. A higher degree of crystallinity was observed in the dragline silk of N. edulis compared with A. keyserlingi, which correlates with the superior mechanical properties of the former. |
| first_indexed | 2024-03-06T18:05:32Z |
| format | Journal article |
| id | oxford-uuid:014d1b98-459f-4965-94e8-aeeefc2d8378 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T18:05:32Z |
| publishDate | 2006 |
| record_format | dspace |
| spelling | oxford-uuid:014d1b98-459f-4965-94e8-aeeefc2d83782022-03-26T08:34:10ZOrientational order of Australian spider silks as determined by solid-state NMR.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:014d1b98-459f-4965-94e8-aeeefc2d8378EnglishSymplectic Elements at Oxford2006Bonev, BGrieve, SHerberstein, MKishore, AWatts, ASeparovic, FA simple solid-state NMR method was used to study the structure of (13)C- and (15)N-enriched silk from two Australian orb-web spider species, Nephila edulis and Argiope keyserlingi. Carbon-13 and (15)N spectra from alanine- or glycine-labeled oriented dragline silks were acquired with the fiber axis aligned parallel or perpendicular to the magnetic field. The fraction of oriented component was determined from each amino acid, alanine and glycine, using each nucleus independently, and attributed to the ordered crystalline domains in the silk. The relative fraction of ordered alanine was found to be higher than the fraction of ordered glycine, akin to the observation of alanine-rich domains in silk-worm (Bombyx mori) silk. A higher degree of crystallinity was observed in the dragline silk of N. edulis compared with A. keyserlingi, which correlates with the superior mechanical properties of the former. |
| spellingShingle | Bonev, B Grieve, S Herberstein, M Kishore, A Watts, A Separovic, F Orientational order of Australian spider silks as determined by solid-state NMR. |
| title | Orientational order of Australian spider silks as determined by solid-state NMR. |
| title_full | Orientational order of Australian spider silks as determined by solid-state NMR. |
| title_fullStr | Orientational order of Australian spider silks as determined by solid-state NMR. |
| title_full_unstemmed | Orientational order of Australian spider silks as determined by solid-state NMR. |
| title_short | Orientational order of Australian spider silks as determined by solid-state NMR. |
| title_sort | orientational order of australian spider silks as determined by solid state nmr |
| work_keys_str_mv | AT bonevb orientationalorderofaustralianspidersilksasdeterminedbysolidstatenmr AT grieves orientationalorderofaustralianspidersilksasdeterminedbysolidstatenmr AT herbersteinm orientationalorderofaustralianspidersilksasdeterminedbysolidstatenmr AT kishorea orientationalorderofaustralianspidersilksasdeterminedbysolidstatenmr AT wattsa orientationalorderofaustralianspidersilksasdeterminedbysolidstatenmr AT separovicf orientationalorderofaustralianspidersilksasdeterminedbysolidstatenmr |