Spinning of Fibers from Aqueous Solutions

机译：从水溶液中纺出纤维

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Previous funding supporting this research focused primarily on development of the aqueous-based method for processing silk into spin solutions. Much of this effort consisted of production of recombinant silk protein in bacterial and yeast expression systems. In spite of the small quantities produced and silk solubility problems, a method for spinning silk fibers under aqueous conditions was developed. However, these fibers were of poor quality and could not be characterized by mechanical tensile testing. Orientation of the protein along the fiber axis was observed by polarizing light microscopy. This was only qualitative, however, and quantitative measurement (e.g., mechanical testing) was needed for fiber evaluation. Under a Cooperative Research and Development Agreement, larger quantities of recombinant silk protein provided by Nexia Biotechnologies were processed for fiber spinning. Spin solutions with protein concentrations as high as 28% were achieved and spun into fibers with measurable mechanical properties similar to natural spider silk. The larger quantities of silk allowed for the examination of the parameters in spin dope preparation, fiber spinning and post spinning treatment to begin to be explored.

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Arcidiacono, S.;
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年度 2003
页码 1-20
总页数 20
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Fibers; Proteins; Silk; Aqueous solutions; Test and evaluation; Measurement; Mechanical properties; Production; Water; Bacteria; Processing; Microscopy; Concentration(Composition); Yeasts; Spinning(Motion); Agreements; Biotechnology; Tensile testers;

机译：纤维;蛋白质;丝绸;水溶液;测试和评估;测量;机械性能;生产;水;细菌;加工;显微镜;浓缩（组成）;酵母;纺纱（运动）;协议;生物技术;拉伸测试仪;

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Spinning of Fibers from Aqueous Solutions

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