2016年
Chemoenzymatic modification of silk fibroin with poly(2,6-dimethyl-1,5-phenylene ether) using horseradish peroxidase
RSC ADVANCES
- ,
- ,
- 巻
- 6
- 号
- 34
- 開始ページ
- 28737
- 終了ページ
- 28744
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1039/c6ra02258h
- 出版者・発行元
- ROYAL SOC CHEMISTRY
Chemical modification of silk materials is a powerful method for tailoring the desired physical properties for possible application in various fields. In this work, we modified silk fibroin with poly(2,6-dimethyl-1,5-phenylene ether) (PPE) in order to imbue the silks with hydrophobicity so as to resist the absorption of humidity. This modification was achieved by chemoenzymatic polymerization of 2,6-dimethylphenol (DMP) using horseradish peroxidase (HRP) as a catalyst in the presence of silk fibroin obtained from Bombyx mori. The PPE chain content in the modified silk was tuned by varying the feed concentration of DMP. Wide-angle X-ray scattering measurements revealed that beta-sheet crystalline structures were formed in the PPE-modified silk, even after the introduction of bulky PPE chains. The PPE-modified silk showed glass transitions derived from the PPE domains, which enabled the formation of self-standing films upon thermal processing. Films of the PPE-modified silk exhibited higher static contact angles of water droplets compared to the native silk films, indicating that the film surface of silk fibroin became more hydrophobic due to the introduction of PPE. These improved physical properties were achieved without sacrificing the inherent secondary structure of silk fibroin, namely, the b-sheet structure that is largely responsible for the mechanical properties of silk materials.
- リンク情報
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- DOI
- https://doi.org/10.1039/c6ra02258h
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000372610200067&DestApp=WOS_CPL
- URL
- http://www.scopus.com/inward/record.url?eid=2-s2.0-84962068644&partnerID=MN8TOARS
- URL
- http://orcid.org/0000-0003-2364-8275
- ID情報
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- DOI : 10.1039/c6ra02258h
- ISSN : 2046-2069
- ORCIDのPut Code : 30359109
- SCOPUS ID : 84962068644
- Web of Science ID : WOS:000372610200067