Suprafibrillar structures of collagen, evidence for local organization and auxetic behaviour in architectures

K Patten; Tim J Wess

doi:10.4236/jbpc.2013.43014

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Suprafibrillar structures of collagen, evidence for local organization and auxetic behaviour in architectures

Journal article

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Suprafibrillar structures of collagen, evidence for local organization and auxetic behaviour in architectures

K Patten and Tim J Wess

Journal of Biophysical Chemistry, Vol.4(3), pp.103-109

2013

DOI: https://doi.org/10.4236/jbpc.2013.43014

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Abstract

Medicinal and Biomolecular Chemistry

Biochemistry and Cell Biology

collagen structure

XRD (X-Ray Diffraction)

suprafibrillar

organisation

auxetic

The suprafibrillar organisation of collagen rich tissues is the keystone to the diversity of resultant structures made from relatively similar materials. The local organisation between fibrils may be essential to suprafibril structures that are critical to functionality such as transparency in cornea, where specific lateral relationships between fibrils dictate optical properties. Here we show that corneal X-ray diffraction combined with mechanical strains to disrupt a specific suprafibrillar relationship between fibrils evidence and a coherent staggered axial relationship between collagen fibrils. The data also shows evidence for auxetic behavior of the collagen fibrils and reveals a 120 nm diffraction feature previously unreported in collagen tissues. The results show that suprafibrillar organisation can be an essential component in tissue architecture that has hitherto been ignored, but now must be considered in mechanical and structural models.

Details

Title: Suprafibrillar structures of collagen, evidence for local organization and auxetic behaviour in architectures
Authors: K Patten (Author) - University of Cardiff, United Kingdom
Tim J Wess (Author) - University of Cardiff, United Kingdom
Publication details: Journal of Biophysical Chemistry, Vol.4(3), pp.103-109
Publisher: Scientific Research Publishing
Date published: 2013
DOI: 10.4236/jbpc.2013.43014
ISSN: 2153-036X
Copyright note: Copyright © 2013 Kate Patten, Tim Wess. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Organisation Unit: Office of the Deputy Vice-Chancellor (Academic); University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99450908002621
Output Type: Journal article

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