Journal
CARBOHYDRATE RESEARCH
Volume 344, Issue 3, Pages 331-335Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carres.2008.10.018
Keywords
Chitin-chitosan; Whisker; Microwave technique; Nanoscaffold
Funding
- SRI Research & Development Ltd. (SRI RD), Japan
- The Petroleum and Petrochemical College, Chulalongkorn University, Thailand
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A chitosan nanoscaffold in the form of a colloidal solution was obtained from the deacetylation of chitin whiskers under alkaline conditions by using a microwave technique in only 1/7 of the treatment time of the conventional method. Fourier-transform infrared spectroscopy (FTIR) and nuclear magnetic resonance (H-1 NMR) techniques confirm the degree of deacetylation to be above 90% within 3 h. The wide-angle X-ray diffraction (WAND) pattern clearly shows that the highly crystalline chitin whiskers are changed to amorphous chitosan. SEM micrographs show the aggregation of branched nanofibers, whereas the TEM micrographs reveal the scaffold morphology. (C) 2008 Elsevier Ltd. All rights reserved.
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