中国组织工程研究

中国组织工程研究 ›› 2018, Vol. 22 ›› Issue (26): 4191-4195.doi: 10.3969/j.issn.2095-4344.0949

• 材料力学及表面改性 material mechanics and surface modification • 上一篇    下一篇

鲫鱼鱼鳞跨尺度结构及成分的表征

段婷婷，王吉辉，郭 雁，徐兴亚，汪得功，郑 威，黄玉松，李 宁，王 玲，辛培训   

  1. 山东非金属材料研究所，山东省济南市 250031
  • 收稿日期:2018-04-05 出版日期:2018-09-18 发布日期:2018-09-18
  • 通讯作者: 段婷婷，山东非金属材料研究所，山东省济南市 250031
  • 作者简介:段婷婷，女，1990年生，山东省济南市人，汉族，硕士，主要从事复合材料研究。
  • 基金资助:

    国防基础科研计划资助(JCKY2016208B012)

Characterization of the cross-structure and composition of crucian fish scales

Duan Ting-ting, Wang Ji-hui, Guo Yan, Xu Xing-ya, Wang De-gong, Zheng Wei, Huang Yu-song, Li Ning,Wang Ling, Xin Pei-xun   

  1. Shangdong Institute of Nonmetal Materials, Jinan 250031, Shandong Province, China
  • Received:2018-04-05 Online:2018-09-18 Published:2018-09-18
  • Contact: Duan Ting-ting, Shangdong Institute of Nonmetal Materials, Jinan 250031, Shandong Province, China
  • About author:Duan Ting-ting, Master, Shangdong Institute of Nonmetal Materials, Jinan 250031, Shandong Province, China
  • Supported by:

    the Basic Research Funding for National Defense of China, No. JCKY2016208B012

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摘要：

文章快速阅读：
 
文题释义：
鱼鳞：作为鱼类的“天然铠甲”，对其内部组织起到了很好的防护作用，为鱼体提供了一道保护屏障。鱼鳞中含有很多的胶原蛋白，是食品及化妆品中的主要成分，因其结构复杂，可为复合材料的制备提供新思路。跨尺度结构：鱼鳞具有从厘米尺度到纳米尺度的不同结构，宏观、介观结构即整个鱼鳞片的表面结构和其在鱼体表面的排列方式等，对研究其减阻材料提供了借鉴价值；而其为纳米的有机-无机复合结构，将对新型复合结构材料的研发奠定基础。
介观结构：是介于宏观与微观之间的一种体系，处于介观的物体在尺寸上已是宏观的，因而具有宏观体系的特点；但由于其中电子运动的相干性，会出现一系列新的与量子力学相位相联系的干涉现象，这又与微观体系相似，故称“介观”。 

 

 

背景：鱼鳞因具备超轻和极好的韧性而成为研究的热点。
目的：表征鱼鳞的跨尺度结构及成分。
方法：取新鲜鲫鱼鱼鳞，去离子水清洗，进行光学显微镜、扫描电镜、X射线能谱、X射线衍射、傅里叶红外光谱和热分析。

结果与结论：①光镜下显示，鱼鳞外表面较粗糙，整体分为遮盖区和暴露区两部分，鱼鳞整体呈现出不规则的六边形状态，以覆瓦形式排列于鱼体表面，形成微观的波纹状表面结构；②扫描电镜显示，鱼鳞截面粗略分为5层，第3，4层呈现出纤维状态，第1，2，5层为致密的层；前3层的主要元素为碳、氧、磷和钙，第4层主要有碳、氧和氮，且含有少量其他元素，第5层仅含有碳和氧；③红外光谱分析显示，鱼鳞外表面主要为无机物；内表面主要为有机物，还有少量无机成分；④X射线衍射分析显示，鱼鳞因以有机成分为主，未显示无机成分峰值，将鱼鳞适当处理后，结果显示其无机成分主要为羟基磷灰石；⑤热分析显示，鱼鳞的主要成分为有机质；⑥结果表明，鱼鳞是由有机胶原蛋白和无机羟基磷灰石组成的层状复合结构，这种复合结构赋予了鱼鳞极好的韧性，使其能有效防护内部组织受到侵袭和伤害。

ORCID: 0000-0002-4849-1844(段婷婷)

关键词: 鱼鳞, 跨尺度, 结构, 成分, 表征, 生物材料

Abstract:

BACKGROUND: Fish scales have become the focus of research because of their ultra-light and excellent toughness.

OBJECTIVE: To characterize the cross-scale structure and composition of fish scales.
METHODS: The fresh fish scales were cleaned with deionized water. The samples were then examined by light microscopy, scanning electron microscopy, X-ray energy dispersive spectroscopy, X-ray diffraction, Fourier transform infrared spectroscopy and thermal analysis.

RESULTS AND CONCLUSION: (1) Under the light microscope, the outer surface of the fish scale was rough, and the whole structure was divided into two parts, covering area and exposed area. The fish scale presented with an irregular hexagonal state, and arranged in the form of a cover tile on the fish body surface to form a microscopic corrugated surface structure. (2) Under the scanning electron microscope, the cross-section was roughly divided into five layers, the third and fourth layers were in the fiber state, and the first, second and fifth layers were the dense layers. The main elements of the first three layers were carbon, oxygen, phosphorus and calcium. The fourth layer was mainly made up of carbon, oxygen and nitrogen, and contained a little amount of other elements. The fifth layer contained only carbon and oxygen. (3) The infrared spectrum analysis results showed that the outer surface of fish scales was mainly inorganic, and the inner surface was mainly organic, except for a few inorganic components. (4) X-ray diffraction analysis showed that the fish scale was mainly composed of organic components, and the spectrum showed no peak of inorganic components. After properly treated, the inorganic components of the fish scales were mainly hydroxyapatite. (5) Thermal analysis results showed that the main component of fish scales was organic matter. All these findings reveal that the fish scale is a layered composite structure composed of organic collagen and inorganic hydroxyapatite, which gives the fish scales excellent toughness, and therefore, the fish scale can effectively protect the body from being attacked and damaged. 

 

Key words: Molecular Structure, Spectroscopy, Fourier Transform Infrared, X-Ray Diffraction, Tissue Engineering

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