Temperature dependent structure of spider silk by X-ray diffraction |
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| Authors: | A Gli?ovi? T Salditt |
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| Institution: | 1.Institut für R?ntgenphysik,Universit?t G?ttingen,G?ttingen,Germany |
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| Abstract: | We have investigated the structure of spider dragline silk by X-ray diffraction over a broad temperature range from room temperature
up to thermal denaturation conditions. The dominating signal from the β-sheet crystallites is analyzed. Pronounced changes
of scattering intensity starting at temperatures around 150 °C are observed. These changes are discussed in view of the respective
lattice constants, crystal size, size distribution, crystallite number density and amino acid composition.
PACS 87.68.+z; 87.15.-v; 87.64.Bx |
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