Abstract
Nano-crystalline cellulose (NCC) with high content of Iα domains are generated by treatment of cellulose microfibrils from the algae Chaetomorpha antennina with 80 % H2SO4 followed by ethanolic precipitation. X-ray diffraction and FT-IR analyses have revealed that the NCCs produced are highly crystalline and predominantly composed of the Iα allomorph, which indicate the selective dissolution of Iα fragments. AFM images shows that the NCCs produced are of 60–70-nm thickness and of variable length depending on the concentration. The well-dispersed suspension of 1-mg NCC in 10-mL distilled water shows a highly networked structure, which expand its applications over various fields especially in nano-medicine.
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Acknowledgments
One of the authors (SS) is grateful to the financial assistance by CSIR (India). We thank Prof. Jayaraj M.K., department of physics, CUSAT for providing the instrumental facilities, and the Government of Kerala for the financial support received to establish a new centre, Inter University Centre for Development of Marine Biotechnology (IUCDMB).
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Saritha, S., Nair, S. & Kumar, N. Nano-Ordered Cellulose Containing Iα Crystalline Domains Derived from the Algae Chaetomorpha antennina . BioNanoSci. 3, 423–427 (2013). https://doi.org/10.1007/s12668-013-0110-9
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DOI: https://doi.org/10.1007/s12668-013-0110-9