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首页> 外文期刊>Journal of nano research >Silk Cocoon: 'Emperor's New Clothes' for Pupa: Fractal Nano-hydrodynamical Approach
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Silk Cocoon: 'Emperor's New Clothes' for Pupa: Fractal Nano-hydrodynamical Approach

机译：蚕茧：Pu的“皇帝新装”：分形纳米流体动力学方法

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摘要

Blossman-Myer and Burggren (Comp. Biochem. Phys. A, 155, 2010,259-263) found that the cocoon of the silkworm, Bombyx mori, while creating a tough barrier offering mechanical protection to the pupa, imposes no barrier to the diffusion of oxygen or water vapor. In view of its mechanical properties, silk cocoon is an "emperor's new clothes" for pupa. A theoretical analysis is given to explain the fascinating phenomenon by a fractal hydrodynamic model for discontinuous membrane composed of hierarchical silk cascade. The model reveals that when the fractal dimensions of the microstructure of the cocoon meet a special condition, air and water vapor can flow through the cocoon as if there were no cocoon. However, at extremes of weather, the cocoon is an excellent thermal protection for both high and cool temperatures. A better understanding of the cocoon mechanism could help the further design of bio-mimetic artificial clothes for special applications.
机译：Blossman-Myer和Burggren（Comp。Biochem。Phys。A，155，2010,259-263）发现，家蚕茧（Bombyx mori）在形成对offering提供机械保护的坚硬屏障的同时，对the没有强加屏障。氧气或水蒸气的扩散。鉴于其机械性能，蚕茧是的“皇帝新装”。通过分层次的流体动力学模型，对由分层丝级联组成的不连续膜进行了分形水动力模型，对这一现象进行了理论分析。该模型表明，当茧的微结构的分形维数满足特殊条件时，空气和水蒸气会像没有茧一样流过茧。但是，在极端天气下，茧对于高温和低温都具有出色的热保护作用。更好地了解茧的机制可以帮助进一步设计特殊用途的仿生物人造服装。

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  • 来源
    《Journal of nano research》 |2013年第2013期|65-70|共6页
  • 作者

    Ruoxi Chen; Fujuan Liu; Ji-Huan He; Jie Fan;

  • 作者单位

    National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering Soochow University, 199 Ren-ai Road, Suzhou 215123, China;

    National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering Soochow University, 199 Ren-ai Road, Suzhou 215123, China;

    National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering Soochow University, 199 Ren-ai Road, Suzhou 215123, China;

    National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering Soochow University, 199 Ren-ai Road, Suzhou 215123, China,School of Textiles, Tianjin Polytechnic University, 399 West Binshui Road, Tianjin 300387, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Biomaterials; Diffusion; Bombyxmori; cocoon; fractal hydrodynamics; fractal geometry; carbon nanotubes;

    机译：生物材料;扩散;Bombyxmori;茧;分形流体动力学分形几何碳纳米管;

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