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Title: The process of EDC-NHS cross-linking of reconstituted collagen fibres increases collagen fibrillar order and alignment

Journal Article · · APL materials
DOI:https://doi.org/10.1063/1.4900887· OSTI ID:22415237
; ;  [1]; ;  [2]
  1. Department of Materials Science and Metallurgy, University of Cambridge, Cambridge (United Kingdom)
  2. Tigenix Ltd., Byron House, Cambridge Business Park, Cambridge (United Kingdom)

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 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.

OSTI ID:
22415237
Journal Information:
APL materials, Vol. 3, Issue 1; Other Information: (c) 2014 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 2166-532X
Country of Publication:
United States
Language:
English