Preparation of Chitin Nanofibers from Crab Shell and Their Applications

DOI 2 Citations 27 References

Bibliographic Information

Other Title
  • カニ殻に内包されるキチンナノファイバーの単離技術および用途開発

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Description

Chitin nanofibers are prepared from the exoskeletons of crabs and prawns by a simple mechanical treatment. The obtained nanofibers have fine nanofiber networks with a uniform width of approximately 10–20 nm and a high aspect ratio. Chitin nanofibers are acetylated to modify their surfaces. The acetyl DS can be controlled from 1 to 3 by changing the reaction time. Optically transparent chitin nanofiber composites are prepared with acrylic resins. Due to the nano-size structure, all of the composites are highly transparent. Chitin nanofibers significantly increase the Young’s moduli and the tensile strengths and decrease the thermal expansion of all acrylic resins due to the reinforcement effect of chitin nanofibers. Chitin nanofiber shows chiral separation ability. The chitin nanofiber membrane transports the D-isomer of glutamic acid, phenylalanine, and lysine from the corresponding racemic amino acid mixtures faster than the corresponding L-isomer. The chitin nanofibers improve clinical symptoms and suppress ulcerative colitis in a DSS-induced mouse model of acute ulcerative colitis.

Journal

  • KOBUNSHI RONBUNSHU

    KOBUNSHI RONBUNSHU 69 (8), 460-467, 2012

    The Society of Polymer Science, Japan

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Details 詳細情報について

  • CRID
    1390282681502115200
  • NII Article ID
    130004489402
  • DOI
    10.1295/koron.69.460
  • ISSN
    18815685
    03862186
  • Text Lang
    ja
  • Article Type
    journal article
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
    • KAKEN
  • Abstract License Flag
    Disallowed

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