Journal
CARBOHYDRATE POLYMERS
Volume 93, Issue 2, Pages 499-505Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2012.12.040
Keywords
Nanofiber; Polysaccharide; beta-1,3-Glucan; Paramylon; Euglena
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Funding
- Advanced Low Carbon Technology Research and Development Program of the Japan Science and Technology Agency
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We have fabricated a polysaccharide nanofiber made from paramylon (beta-1,3-glucan), a storage polysaccharide stored as a micrometer-sized particle in the cell of euglenoid alga. Preparation of this nanofiber primarily hinges on the bottom-up approach. First, paramylon, which is originally present in the form of a bundle of nanofibers in a particle, was fibrillated to a randomly coiled polymer by dissolving the particle in a 1.0-mol/L NaOH aqueous solution. Second, the randomly coiled polymer was allowed to self-assemble into a triplex as the NaOH concentration was reduced to 0.25-0.20 mol/L. Third, a 20-nm-width nanofiber made from the triplex emerged in the solution when the NaOH concentration was reduced to approximately 0.20 mol/L. (C) 2012 Elsevier Ltd. All rights reserved.
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