Collagen Fibers in Crocodile Skin and Teeth:A Morphological Comparison Using Light and Scanning Electron Microscopy

作     者：Piotr Krzysztof Szewczyk Urszula Stachewicz Piotr Krzysztof Szewczyk;Urszula Stachewicz

作者机构：Metals Engineering and Industrial Computer Science and International Centre of Electron Microscopy for Materials ScienceAGH University of Science and TechnologyKraków 30-059Al.Mickiewicza 30Poland 

出 版 物：《Journal of Bionic Engineering》 (仿生工程学报（英文版）)

年 卷 期：2020年第17卷第4期

页      面：669-676页

核心收录：

学科分类：0831[工学-生物医学工程（可授工学、理学、医学学位）] 08[工学] 0836[工学-生物工程] 

基　　金：The authors thank Adam Hryniewicz from Warsaw Zoo for crocodile skin and teeth samples used in this study.This study was conducted as part of the“Nano-fiber-based sponges for atopic skin treatment"project which is carried out within the First TEAM programme of the Foundation for Polish Science co-financed by the European Union under the European Regional Devel-opment Fund Project No.POIR.04.04.00-00-4571/18-00.This study was supported by the infrastructure at the International Centre of Electron Microscopy for Materials Science(IC-EM)at AGH University of Science and Technology 

主　　题：crocodile skin collagen crimp fiber crocodile tooth SEM 

摘      要：Collagen is one of the most versatile tissues of living organisms that comes in many shapes and sizes,providing functions ranging from tissue matrix through,ligament formation up to enabling mineralization in *** detailed light microscopy and Scanning Electron Microscopy(SEM)observations conducted in this study,allowed us to investigate morphology,sizes and crimp patterns of collagen fibers observed in crocodile skin and ***,the microscopy study revealed that although two completely different tissues were investigated,many similarities in their structure based on collagen fibers were *** type I is present in crocodile skin and teeth,showing the flexibility in naturally constructed tissues to obtain various *** crimp size investigation of collagen fibers confirmed experimentally the theoretical 67 nm D-periodicity expected for collagen type *** collagen in teeth provides a matrix for crystal growth and in the skin provides flexibility and is a precursor for corneous ***,these observations of the collagen in the skin and tooth structure in crocodiles play an important role in designing biomimetic materials with similar functions and properties.