Preparation and Characterization of a Water-fast, Soft and Elastic Keratin Membrane，2005年新型纤维与聚合物材料国际学术会议（10.19-10.21，上海）-中国聚合物网,论文下载

Preparation and Characterization of a Water-fast, Soft and Elastic Keratin Membrane

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Keratin solution membrane FT-IR tensile properties UV-Vis-NIR
spectrum

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分子表征

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2005年新型纤维与聚合物材料国际学术会议（10.19-10.21，上海）

简介：

Keratinmoleculesareeasilydegradedinwooldissolutionwhichmakesmolecular-chainbreakandweightdecreasesosothattheformedkeratinmembraneshowslowtensilepropertiesandbadformabilityformostexistingdissolvingmethods.Anewappproachtotopreparekeratinsolutionfromwoolfiberswithlowdamageonthepeptidelinkages,i.e.themolecularweightrangesfrom13000~18000,andthepreparationmethodtoformthekeratinfilmfromthekeratinsolution,havebeenstudiedexperimentally.Themembranesweremeasuredbymeansofspectroscopicanalysisandtensiletests.Theformerresultsshowthati)thekeratinfilmsaretypicalandtransparentproteinfilmsbutthetransparencydependsonthemicro-poresizeandkeratinconcentration；ii)thefilmsareanti-ultravioletones,especiallybetweenshortanddistantUVarea；andiii)thereareβ-pleatedmoleculesinbecauseFT-IRanalysisillustratestheabsorbedpicksatacylamineIandIIbands.Thelatterresultsobtainedfromthetensiletestsindicatethatthissortofkeratinmembraneshasarelativehighmodulus,moderatestrength,highelongationandlowbendingrigidity.Asamaterialsusedinbiomedicinefield,especiallyforthecultivationsubstrates,thekeratinmembraneisanextensiveandappliedprospectinbiomembranes.

作者：

Yanwei TANG Weidong YU

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2007-07-31 16:33:20

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