Bio-deuterated cellulose thin films for enhanced contrast in neutron reflectometry

Novel molecularly smooth, flat and thin films of regenerated bio-deuterated cellulose were produced for enhanced contrast with adsorbed molecules in neutron reflectivity (NR) and for cellulose structure studies. The cellulose films were produced to study both the solid/air interface and the solid/li...

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Bibliographic Details
Published in:Cellulose (London) 2017, Vol.24 (1), p.11-20
Main Authors: Raghuwanshi, Vikram Singh, Su, Jielong, Garvey, Christopher J., Holt, Stephen A., Raverty, Warwick, Tabor, Rico F., Holden, Peter J., Gillon, Marie, Batchelor, Warren, Garnier, Gil
Format: Article
Language:English
Subjects:
Biomolecules
Bioorganic Chemistry
Biosynthesis
Cellulose
Ceramics
Chemical bonds
Chemistry
Chemistry and Materials Science
Composites
Deuteration
Glass
Hydroxyl groups
Liquid phases
Macromolecules
Natural Materials
Organic Chemistry
Original Paper
Physical Chemistry
Polymer Sciences
Sustainable Development
Thin films
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Summary:Novel molecularly smooth, flat and thin films of regenerated bio-deuterated cellulose were produced for enhanced contrast with adsorbed molecules in neutron reflectivity (NR) and for cellulose structure studies. The cellulose films were produced to study both the solid/air interface and the solid/liquid interface. Cellulose films with a wide range of scattering contrast were achieved by combining exchange of 1 H for deuterium on hydroxyl groups via water in the liquid phase and via biosynthesis of deuterated bacterial cellulose by Gluconacetobacter xylinus which can deuterate the hydrogens bonded to carbon atoms in cellulose. The deuterated cellulose combined with NR will help to provide new information on the interaction of various (bio)-macromolecules and cellulose. This includes quantifying and visualizing the density profile of polymers and biomolecules adsorbed onto cellulose surface. The potential of this material for IR studies of materials adsorbed to cellulose films is briefly discussed.
ISSN:0969-0239
1572-882X
DOI:10.1007/s10570-016-1108-6