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Fine Structure of Regenerated Silk Fibroin Solids
引用本文:李明忠,吴徵宇,箕浦宪彦,严灏景. Fine Structure of Regenerated Silk Fibroin Solids[J]. 东华大学学报(英文版), 2002, 19(3)
作者姓名:李明忠  吴徵宇  箕浦宪彦  严灏景
作者单位:LI Ming-zhong,WU Zheng-yu College of Material Engineering,Suzhou University,Suzhou,215021 Norihiko Minoura Nanoarchitectonics Research Center,National Institute of Advanced Industrial Science and Technology,Materials and Chemical Research,Tsukuba Central 5,1-1-1 Higashi,Tsukuba,Ibaraki 3058565,Japan YAN Hao-jingCollege of Textiles,Dong Hua University,Shanghai,200051
摘    要:IntroductionSilkfibroin (Bombyxmori)isthepolymerwithtwokindsofcrystalstructure,silkⅠandsilkⅡ[1,2 ] .ThespaceconformationofsilkⅠtakesontheshapeofcrookedhandle ,theintermediateformbetweenα spiralstructureandβ foldedstructure ,andthatofsilkⅡisanti parallelβ folde…


Fine Structure of Regenerated Silk Fibroin Solids
LI Ming-Zhong,WU Zheng-yu,Norihiko Minoura,YAN Hao-jing. Fine Structure of Regenerated Silk Fibroin Solids[J]. Journal of Donghua University, 2002, 19(3)
Authors:LI Ming-Zhong  WU Zheng-yu  Norihiko Minoura  YAN Hao-jing
Affiliation:1. College of Material Engineering, Suzhou University, Suzhou, 215021
2. Nanoarchitectonics Research Center, National Institute of Advanced Industrial Science and Technology, Materials and Chemical Research, Tsukuba Central 5, 1 - 1 - 1 Higashi, Tsukuba, Ibaraki 305 - 8565, Japan
3. College of Textiles, Dong Hua University, Shanghai, 200051
Abstract:The fibronin solids (membrane and gel) were prepared from regenerated silk fibroin solution in different ways. The structure of the fibroin solids and its change during storage were studied. The results indicated that the structure of fibroin membraneair-dried at 30℃ or freeze dried at a freezing temperature of - 20 - - 4℃ was the coexistence of amporphous and silk I structure. The amorphous region could partly be transformed into silk I structure under room temperature and humidity. The structure of porous silk fibroin membrane was the coexistence of amorphous and small part of silk Ⅱ, if the aqueous fibroin was freeze dried within the temperature range of - 80℃ to - 20℃, and the amorphous partly transformed into silk I during storage. Thestructure of fibroin gel naturally forming when kept at room temperature was coexistent of amorphous and silk Ⅱ. The content of Gly and ala was high in the surface membrane of aqueous fibroin and its structure was mostly silk I and silk Ⅱ with high crystallinity.
Keywords:silk fibroin  regenerated fibroin  membrane  fine structure.
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