环境友好高分子论文翻译.docx

《环境友好高分子》课程作业题目： Biomimetic Fibers Made of Recombinant Spidroins with the Same Toughness as Natural Spider Silk论文翻译 化学与材料工程 学院 高分子 专业学 号 XXXXXXX 学生姓名 KITTY LC 指导教师 二〇XX年X月文献来源：ADVANCED MATERIALS 卷: 27 期: 13 页: 2189-2194DOI: 10.1002/adma.201404234出版年: APR 1 2015Biomimetic Fibers Made of Recombinant Spidroins with the Same Toughness as Natural Spider Silk由重组蛛丝蛋白制得韧性与天然蛛丝一样的仿生纤维Authors: Aniela Heidebrecht; Lukas Eisoldt; Johannes Diehl; Andreas Schmidt; Martha Geffers; Gregor Lang; Thomas ScheibelAbstractUsing a self-assembly of recombinant spidroins, biomimetic spinning dopes are produced and wet-spun into fibers. Upon varying the molecular design of the underlying recombinant spidroins, the influence of the amino- and carboxy-terminal domains, as well as the size of the repetitive core domain on fiber mechanics, is determined. Fiber toughness upon biomimetic processing equals and even slightly exceeds that of natural ones.Keywords: biomimetic materials; phase separation; spider silk; toughness摘要本课题研究了利用重组蛛丝蛋白的自组装，生产出仿生纤维纺丝原液并用湿法纺丝制得纤维的性能。根据改变底层重组蛛丝蛋白的分子设计实验可知，氨基和羧基末端区域的影响，同重复的核区域大小对纤维力学性能的影响一样，是起决定性作用的。基于仿生加工的纤维的韧性等同甚至略超过自然的纤维。关键词：仿生材料；相分离；蜘蛛丝；韧性Spider dragline silk exhibits extraordinary mechanical properties combining a moderate strength with good extensibility resulting in a toughness exceeding that of all other natural or synthetic fibers. Although spider silk has been in the focus of research since decades, the mechanical properties, especially the toughness, of reconstituted man-made fibers have never reached those of natural spider silk. The properties are based on the underlying spider silk proteins (spidroins), their self-assembly and their explicit processing. Here, two out of three pre-requisites for tough fibers are tackled; the contribution of individual spidroin domains to assembly is analyzed, and processing of recombinant spidroins into fibers is shown. Fiber toughness upon processing equals and even slightly exceeds that of natu