Journal
MATERIALS SCIENCE-MEDZIAGOTYRA
Volume 27, Issue 1, Pages 57-62Publisher
KAUNAS UNIV TECH
DOI: 10.5755/j02.ms.22784
Keywords
Antheraea Pernyi silk; silk fibroin; molecular weight; mechanical property
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Funding
- Natural Science Foundations of China [NSFC 21574024]
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The research showed that the regenerated Antheraea pernyi silk fibroin obtained by dissolving in calcium nitrate solution had reduced molecular weight and similar thermal decomposition properties compared to the native Antheraea pernyi silk fibroin. However, the tensile properties of the RASF film were observed to be similar to those of the regenerated Bombyx mori silk fibroin film.
The regenerated Antheraea pernyi silk fibroin (RASF) was harvested by dissolving the silk fibers in a calcium nitrate solution. XRD result demonstrated that both native and regenerated Antheraea pernyi silk fibroin involved the a-helix conformation, and DTG curves showed that their thermal decompositions were quite similar and proceeded three steps. However, rheological measurements figured out that the molecule weight of RASF decreased from 246 kDa to 199 kDa, comparing with native Antheraea pernyi silk fibroin. Also, the tensile properties of the RASF film, which were the same to those of regenerated Bombyx mori silk fibroin film, were observed.
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