长足大竹象（鞘翅目：象甲科）口器的形态学与纳米压痕特性
Morphology and nanoindentation properties of mouthparts in Cyrtotrachelus longimanus (Coleoptera: curculionidae).
作者信息
Li Longhai, Guo Ce, Xu Shun, Li Xin, Han Cheng
机构信息
College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, 29 Yudaojie Street, Nanjing, 210016, China.
Institute of Bio-inspired Structure and Surface Engineering, Nanjing University of Aeronautics and Astronautics, 29 Yudaojie Street, Nanjing, 210016, China.
出版信息
Microsc Res Tech. 2017 Jul;80(7):704-711. doi: 10.1002/jemt.22855. Epub 2017 Feb 28.
Microstructure and nanoindentation properties of the mouthparts for the skillful driller Cyrtotrachelus longimanus are presented. The composition and morphological examinations are made using light, fluorescent, scanning electron microscopy, and Energy Disperse Spectroscopy, respectively. Nanoindentation was carried out to measure the elastic modulus and the hardness of mouthparts. The hardness and modulus for "dry" samples is 0.202 ± 0.065 and 8.604 ± 0.838 GPa, respectively, and the values of "fresh" ones is 0.126 ± 0.0196 and 6.951 ± 0.065 GPa, respectively. These results are critical for analyze the drilling mechanism of the weevil and provide a biological template to inspire the biomimetic design.
本文介绍了长臂筒天牛（Cyrtotrachelus longimanus）口器的微观结构和纳米压痕特性。分别使用光学显微镜、荧光显微镜、扫描电子显微镜和能谱仪进行成分和形态学检查。通过纳米压痕测量口器的弹性模量和硬度。“干燥”样本的硬度和模量分别为0.202±0.065 GPa和8.604±0.838 GPa，“新鲜”样本的值分别为0.126±0.0196 GPa和6.951±0.065 GPa。这些结果对于分析象鼻虫的钻孔机制至关重要，并为启发仿生设计提供了生物模板。
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