Journal
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
Volume 110, Issue -, Pages 531-539Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ijbiomac.2017.11.047
Keywords
Capsosiphon fulvescens; Cellulose nanocrystals; Cellulose polymorphs
Funding
- National Research Foundation of Korea (NRF) by Ministry of Education, Science andTechnology [2016R1A2A2A07005160, NRF-2016R1C1B2008296]
- Korea Research Fellowship Program through the National Research Foundation of Korea (NRF) - Ministry of Science
- ICT KRF [2016H1D3A1938077]
- development of an antibacterial, transparent nanofibrous packaging film for extending the shelf life of product and development of a high-speed electrospinning system [116052-03]
- National Research Foundation of Korea [2016H1D3A1938077, 2016R1C1B2008296, 2017H1A2A1046377, 2016R1A2A2A07005160, 22A20130012537] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Cellulose I and II polymorphs were isolated from Capsosiphon fulvescens (CF) using the conventional method of extraction and direct mercerization of raw sample, respectively. The morphological and structural differences between the isolated polymorphs were studied by FTIR, FESEM and XRD. Direct mercerization of raw CF yielded the transformation of highly crystalline cellulose I (81.3%) to II (63.7%) as observed in the shifting of XRD patterns. The derived cellulose I and II were hydrolyzed (60% w/w H2SO4, 55 degrees C, 1 h, 10 mL/g) to obtain the spindle-shaped cellulose nanocrystals. Cellulose nanocrystal I was observed to have a mean thickness and length of 12.67 +/- 2.69 and 92.31 +/- 21.31 nm, respectively: while cellulose nanocrystal II has a mean thickness and length of 15.58 +/- 2.85 and 78.09 +/- 18.22 nm, respectively. Furthermore, a fiber-like mat assembly, which could be used as supplement support structure for tissue engineering, was obtained after subjecting the aqueous cellulose nanocrystal suspensions to freeze-drying. A possible application of this material can be as a biocompatible and biodegradable composite for tissue engineering and other biomedical applications. (C) 2017 Published by Elsevier B.V.
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