Multi-scale model for the hierarchical architecture of native cellulose hydrogels

Martinez-Sanz, Marta, Mikkelsen, Deirdre, Flanagan, Bernadine, Gidley, Michael J. and Gilbert, Elliot P. (2016) Multi-scale model for the hierarchical architecture of native cellulose hydrogels. Carbohydrate Polymers, 147 542-555. doi:10.1016/j.carbpol.2016.03.098

Author Martinez-Sanz, Marta
Mikkelsen, Deirdre
Flanagan, Bernadine
Gidley, Michael J.
Gilbert, Elliot P.
Title Multi-scale model for the hierarchical architecture of native cellulose hydrogels
Journal name Carbohydrate Polymers   Check publisher's open access policy
ISSN 0144-8617
Publication date 2016-08-20
Year available 2016
Sub-type Article (original research)
DOI 10.1016/j.carbpol.2016.03.098
Open Access Status Not Open Access
Volume 147
Start page 542
End page 555
Total pages 14
Place of publication Kidlington, Oxford United Kingdom
Publisher Pergamon Press
Language eng
Abstract The structure of protiated and deuterated cellulose hydrogels has been investigated using a multi-technique approach combining small-angle scattering with diffraction, spectroscopy and microscopy. A model for the multi-scale structure of native cellulose hydrogels is proposed which highlights the essential role of water at different structural levels characterised by: (i) the existence of cellulose microfibrils containing an impermeable crystalline core surrounded by a partially hydrated paracrystalline shell, (ii) the creation of a strong network of cellulose microfibrils held together by hydrogen bonding to form cellulose ribbons and (iii) the differential behaviour of tightly bound water held within the ribbons compared to bulk solvent. Deuterium labelling provides an effective platform on which to further investigate the role of different plant cell wall polysaccharides in cellulose composite formation through the production of selectively deuterated cellulose composite hydrogels.
Keyword Small angle scattering
Neutron scattering
Komagataeibacter xylinus
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
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Centre for Nutrition and Food Sciences Publications
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