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首页> 外文期刊>Materials science & engineering >Reversible stress softening of collagen based networks from the jumbo squid mantle (Dosidicus gigas)
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Reversible stress softening of collagen based networks from the jumbo squid mantle (Dosidicus gigas)

机译：巨型鱿鱼皮（Dosidicus gigas）中基于胶原蛋白的网络的可逆应力软化

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摘要

Dosidicus gigas is the largest and one of the most abundant jumbo squids in the eastern Pacific Ocean. In this paper we have studied the muscle of the mantle of D. gigas (DGM). Morphological, thermal and Theological properties were assessed by means of atomic force microscopy, scanning electron microscopy, energy-dispersive X-ray spectroscopy, differential scanning calorimetry, thermogravimetry and oscillatory rheometry. This study allowed us to assess the morphological and Theological properties of a collagen based network occurring in nature. The results showed that the DGM network displays a nonlinear effect called reversible stress softening (RSS) that has been previously described for other types of biological structures such as naturally occurring cellulose networks and actin networks. We propose that the RSS could play a key role on the way jumbo squids withstand hydrostatic pressure. The results presented here confirm that this phenomenon occurs in a wider number of materials than previously thought, all of them exhibiting different size scales as well as physical conformation.
机译：巨型Dosidicus gigas是东太平洋地区最大，数量最多的巨型鱿鱼之一。在本文中，我们研究了D. gigas（DGM）地幔的肌肉。通过原子力显微镜，扫描电子显微镜，能量色散X射线光谱，差示扫描量热法，热重法和振荡流变法评估了形态，热学和神学特性。这项研究使我们能够评估自然界中存在的基于胶原蛋白的网络的形态和神学特性。结果表明，DGM网络显示出一种非线性效应，称为可逆应力软化（RSS），先前已针对其他类型的生物结构（如天然存在的纤维素网络和肌动蛋白网络）进行了描述。我们建议RSS可以在巨型乌贼承受静水压力的过程中起关键作用。此处提供的结果证实了这种现象发生在比以前认为的更多的材料中，所有材料均显示出不同的尺寸标度和物理构象。

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  • 来源
    《Materials science & engineering》 |2014年第4期|9-13|共5页
  • 作者

    F.G. Torres; O.P. Troncoso; E.R. Rivas; C.G. Gomez; D. Lopez;

  • 作者单位

    Department of Mechanical Engineering, Catholic University of Peru, Lima 32, Peru;

    Department of Mechanical Engineering, Catholic University of Peru, Lima 32, Peru;

    Department of Mechanical Engineering, Catholic University of Peru, Lima 32, Peru;

    Departament de Quimica Fisica and Institut de Ciencia dels Materials, Universitat de Valencia, Dr. Moliner 50, Burjassot, E-46100 Valencia, Spain;

    Institute de Ciencia y Tecnologia de Polimervs, C.S.I.C. Calle Juan de la Cierva 3,28006 Madrid, Spain;

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  • 正文语种 eng
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  • 关键词

    Reversible stress softening; Jumbo squid; Collagen;

    机译：可逆应力软化;巨型鱿鱼;胶原;

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