大背蛙与大背蟾蜍皮肤表面形态及力学性能的比较

IF 1.6 Q4 ENGINEERING, BIOMEDICAL
Mo Li, Chunyu Du, Jili Wang, Zibo Gao, Xiao Yang, Donghui Chen, Jin Tong, Lili Ren
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引用次数: 0

摘要

人类皮肤是一种典型的具有多种功能的天然生物材料。采用拉伸试验技术和形态学设备,对与它们相关的力学性能和形态学进行了具体比较。蛙的皮肤表面柔软光滑,被多边形表皮细胞覆盖,而蟾蜍的皮肤表面坚韧不平,因为有许多疣状结构。巨蟾真皮下部的胶原纤维束呈波浪形排列,而天牛的胶原纤维束呈平行排列。龙蛙的平均弹性模量是龙蛙的9倍。本研究阐明了胶原纤维的排列对皮肤材料的强度和弹性起着重要作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Morphology and mechanical performance between the skin surface of Rana dybowskii and Bufo gargarizans

Morphology and mechanical performance between the skin surface of Rana dybowskii and Bufo gargarizans

Anuran skin is a typical natural biomaterial with multifunctional features. A specific comparison of mechanical performance and morphology related to them was performed in the skin of Rana dybowskii and Bufo gargarizans using the tensile testing technique and morphological equipment. Rana dybowskii's skin has soft smooth surface covered by polygonal epidermal cells, while the Bufo gargarizans species has tough and uneven skin surface due to numerous verrucae structures. The collagen fibre bundles in lower dermis of Bufo gargarizans have wavelike organisation while the bundles of Rana dybowskii show a parallel arrangement. The mean elastic modulus of Rana dybowskii was nine times higher than that of Bufo gargarizans. This study clarified that the arrangement of collagen fibres play an important role in the strength and elasticity of skin material.

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来源期刊
Biosurface and Biotribology
Biosurface and Biotribology Engineering-Mechanical Engineering
CiteScore
1.70
自引率
0.00%
发文量
27
审稿时长
11 weeks
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