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The process of EDC-NHS Cross-linking of reconstituted collagen fibres increases collagen fibrillar order and alignment.


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Authors

Shepherd, DV 
Shepherd, JH 
Ghose, S 
Kew, SJ 
Cameron, RE 

Abstract

We describe the production of collagen fibre bundles through a multi-strand, semi-continuous extrusion process. Cross-linking using an EDC (1-ethyl-3-(3-dimethylaminopropyl)carbodiimide), NHS (N-hydroxysuccinimide) combination was considered. Atomic Force Microscopy (AFM) and Raman spectroscopy focused on how cross-linking affected the collagen fibrillar structure. In the cross-linked fibres, a clear fibrillar structure comparable to native collagen was observed which was not observed in the non-cross-linked fibre. The amide III doublet in the Raman spectra provided additional evidence of alignment in the cross-linked fibres. Raman spectroscopy also indicated no residual polyethylene glycol (from the fibre forming buffer) or water in any of the fibres.

Description

Keywords

0306 Physical Chemistry (incl. Structural)

Journal Title

APL Mater

Conference Name

Journal ISSN

2166-532X
2166-532X

Volume Title

3

Publisher

AIP Publishing
Sponsorship
Engineering and Physical Sciences Research Council (DT/F006977/1)
The authors would like to acknowledge the support of the Engineering and Physical Sciences Research Council (EPSRC), UK through a Knowledge Transfer Secondment (KTS) (to JHS), The National Institute for Health Research (NIHR) through their i4i grant to Tigenix Ltd and the TSB grant TP/8/BIO/6/I/Q0052.