声足动物达克提尔俱乐部:一个可怕的耐损害的生物子
James C Weaver1, Garrett W Milliron, Ali Miserez
1Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA 01238, USA.
Science (New York, N.Y.)
|June 9, 2012
概括
称为口足动物的海洋甲类动物已经进化出了强硬的牙杆,用于狩猎. 这些类似子的结构使用独特的复合材料来承受高速冲击,防止重复冲击时的损坏.
科学领域:
- 生物材料科学 生物材料科学
- 结构生物学 结构生物学
- 海洋生物学 海洋生物学
背景情况:
- 大自然合成了复杂的矿物质结构,具有非凡的耐损伤能力.
- 嘴足动物是有侵略性的海洋甲类动物,它们拥有超矿化的手指球.
- 这些俱乐部对于它们的掠夺行为至关重要,涉及高速冲击.
研究的目的:
- 为了研究Odontodactylus scyllarus dactyl俱乐部的结构特征.
- 了解材料的组成和组织有助于损坏耐受性.
- 阐明在重复加载下对灾难性故障的防御机制.
主要方法:
- 分析了手指球俱乐部的多相复合结构.
- 晶体酸,无形酸和碳酸盐的表征.
- 检查了状有机基质的状组织.
主要成果:
- 纹形俱乐部由定向的晶体酸和无形酸/碳酸盐组成.
- 一个高度扩展的螺旋形组织的纤维状状基因质矩阵是存在的.
- 这些结构特征提供了对冲击引起的故障的多条防线.
结论:
- 独特的复合材料和状基结构使其具有特殊的损伤耐受性.
- 奥多多达克提勒斯 (Odontodactylus scyllarus) 的达克提勒俱乐部是大自然高能冲击的高效设计的典范.
- 了解这些结构可以为开发先进的仿生材料提供信息.
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