The photochemical stability of collagen - Chitosan blends

A Sionkowska; M Wisniewski; J Skopinska; Craig J Kennedy; Tim J Wess

doi:10.1016/S1010-6030(03)00397-6

Back

The photochemical stability of collagen - Chitosan blends

Journal article

Peer reviewed

The photochemical stability of collagen - Chitosan blends

A Sionkowska, M Wisniewski, J Skopinska, Craig J Kennedy and Tim J Wess

Journal of Photochemistry and Photobiology A: Chemistry, Vol.162(2-3), pp.545-554

2004

DOI: https://doi.org/10.1016/S1010-6030(03)00397-6

Files and links (1)

url

https://doi.org/10.1016/S1010-6030(03)00397-6View

Published Version

Abstract

collagen

chitosan

UV radiation

X-ray diffraction

structure

The photochemical stability of collagen-chitosan blends in solution and film form was investigated using viscosimetry measurements, UV-Vis spectrophotometry, FTIR spectroscopy and wide angle X-ray diffraction. It was found that the relative viscosity of collagen decreased upon UV irradiation. The initial relative viscosity of collagen-chitosan blends were greater than the viscosity of collagen; upon UV irradiation the viscosity of the blends decreased rapidly. The absorption/scattering of collagen in solution increased during irradiation of the sample as shown by UV-Vis, indicating a conformational transition in the sample. FTIR showed that the amide A, B, I and II bands from collagen are shifted after UV irradiation to lower wave numbers; these shifts in collagen-chitosan blends are less well pronounced. Wide angle X-ray diffraction indicated that collagen and collagen-chitosan blends in film form retain much of their structural characteristics after irradiation.The viscosimetry and UV-Vis spectrophotometry results have shown that solutions of collagen-chitosan blends are less stable photochemically than a pure collagen solution. FTIR spectra have shown, that collagen-chitosan blended films are also less stable photochemically than pure collagen films. Wide angle X-ray diffraction indicates that collagen and collagen-chitosan blend samples in film form are less susceptible to conformational change than equivalent samples in solution. © 2004 Elsevier B.V. All rights reserved.

Details

Title: The photochemical stability of collagen - Chitosan blends
Authors: A Sionkowska (Author) - Copernicus University, Poland
M Wisniewski (Author) - Copernicus University, Poland
J Skopinska (Author) - Copernicus University, Poland
Craig J Kennedy (Author) - University of Stirling, United Kingdom
Tim J Wess (Author) - University of Stirling, United Kingdom
Publication details: Journal of Photochemistry and Photobiology A: Chemistry, Vol.162(2-3), pp.545-554
Publisher: Elsevier BV
Date published: 2004
DOI: 10.1016/S1010-6030(03)00397-6
ISSN: 1010-6030
Organisation Unit: Office of the Deputy Vice-Chancellor (Academic); University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99450903702621
Output Type: Journal article

Metrics

213 Record Views

55 Times Cited - Web of Science

InCites Highlights

These are selected metrics from InCites Benchmarking & Analytics tool, related to this output

Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Chemistry, Physical