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首页> 美国卫生研究院文献>BioMed Research International >Antheraea pernyi Silk Fiber: A Potential Resource for Artificially Biospinning Spider Dragline Silk
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Antheraea pernyi Silk Fiber: A Potential Resource for Artificially Biospinning Spider Dragline Silk

机译：ther蚕丝纤维：人工生物纺制蜘蛛拉丝的潜在资源

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摘要

The outstanding properties of spider dragline silk are likely to be determined by a combination of the primary sequences and the secondary structure of the silk proteins. Antheraea pernyi silk has more similar sequences to spider dragline silk than the silk from its domestic counterpart, Bombyx mori. This makes it much potential as a resource for biospinning spider dragline silk. This paper further verified its possibility as the resource from the mechanical properties and the structures of the A. pernyi silks prepared by forcible reeling. It is surprising that the stress-strain curves of the A. pernyi fibers show similar sigmoidal shape to those of spider dragline silk. Under a controlled reeling speed of 95 mm/s, the breaking energy was 1.04 × 105 J/kg, the tensile strength was 639 MPa and the initial modulus was 9.9 GPa. It should be noted that this breaking energy of the A. pernyi silk approaches that of spider dragline silk. The tensile properties, the optical orientation and the β-sheet structure contents of the silk fibers are remarkably increased by raising the spinning speeds up to 95 mm/s.
机译：蜘蛛牵引铲丝的出色特性很可能是由丝蛋白的一级序列和二级结构的组合决定的。 ther蚕丝比其国内同类产品Bombyx mori的丝序列与蜘蛛拉丝更相似。这使其有潜力作为生物纺制蜘蛛拉铲丝的资源。本文通过强力卷取制备的per蚕丝的力学性能和结构进一步证明了其作为资源的可能性。令人惊讶的是，pernyi纤维的应力-应变曲线显示出与蜘蛛拉铲丝相似的S形。在控制卷取速度为95 mm / s的情况下，断裂能为1.04×10 5 J / kg，抗张强度为639 MPa，初始模量为9.9 GPa。应当指出的是，A。pernyi丝的这种断裂能接近蜘蛛拉铲丝的断裂能。通过将纺丝速度提高到95 mm / s，可以显着提高丝纤维的拉伸性能，光学取向和β-片层结构含量。

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