蜘蛛丝的分子结构与力学性能研究

蜘蛛丝尤其是蜘蛛大囊状腺产生的拖丝,具有独特的机械性能,是自然界颇具应用潜力的生物材料。现代分子生物学技术使蜘蛛丝蛋白基因得以克隆,通过高分子物理化学手段方法的利用,有利于揭示蜘蛛丝蛋白质序列、分子结构、以及分子结构和力学性能之间的关系。对不同种类蜘蛛丝蛋白的深入研究,将为基因工程方法人工合成并改造蜘蛛丝成为可能。

The Molecular Structure and Mechanical Properties of Spider Silks

Spiders produce a variety of high-performance structural fibres incluing the major ampullate dragline silk with more remarkable mechanical properties than the best synthetic fibres produced by modern technology.The cloning of genes for silk fibroins and the utility of modern macromolecular physi-chemical technology lead to an increase in the understanding which is related to fibroin sequence,microstructure,the mechanical properties and structure-property.The research of different kinds of silk fibroins provides opportunity in the synthesis of genetically engineered silk fibres with even higher performance.