Bio-deuterated cellulose thin films for enhanced contrast in neutron reflectometry
| Autor: | Marie Gillon, Rico F. Tabor, Peter J. Holden, Warren Batchelor, Gil Garnier, Stephen A. Holt, Christopher J. Garvey, Vikram Singh Raghuwanshi, Warwick Raverty, Jielong Su |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Materials science Polymers and Plastics Polymers Biomolecule chemistry.chemical_element 02 engineering and technology Polymer 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Adsorption chemistry Chemical engineering Bacterial cellulose Polymer chemistry Neutron reflectometry Cellulose Thin film 0210 nano-technology Carbon 0303 Macromolecular and Materials Chemistry 0912 Materials Engineering |
| Popis: | 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 1H 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. |
| Databáze: | OpenAIRE |
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