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Synthesis and Characterization of Chitosan Scaffolds for Cartilage-Tissue Engineering

  • Steven H. Elder
  • Dana L. Nettles
  • Joel D. Bumgardner
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Part of the Methods in Molecular Biology™ book series (MIMB, volume 238)

Abstract

Chitin, poly(N-acetylglucosamine) is a structural polysaccharide found in the shell of crustaceans and mollusks and is typically isolated from waste produced in food processing. The procedure for extracting chitin from crustacean shells usually involves decalcification, deproteination, and decolorization, which may be accomplished by sequential treatment in 5% HCl solution, 5% NaOH, and 0.5%KMnO4(aq) and oxalic acid. Chitosan, poly(N-acetyl-2-amino-2-deoxy-d-Gluco-pyranose), is formed through the N-deacetylation of chitin, usually by treatment with strong alkalis (e.g., 50% NaOH) at an elevated temperature. It is a linear, polycationic copolymer of N-acetylglucosamine and glucosamine (combined by 1–4 glycosidic linkages), with the degree of deacetylation defined as the molar fraction of N-acetylglucosamine units. Several studies have linked the biological activity of chitosan to its degree of deacetylation and mol wt (1, 2, 3, 4, 5, 6), parameters that may be controlled by varying the time and temperature of the deacetylation reaction.

Keywords

Chitosan Solution Mercury Intrusion Porosimetry Chitosan Scaffold Crustacean Shell Deacetylation Reaction 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Humana Press Inc. 2004

Authors and Affiliations

  • Steven H. Elder
    • 1
  • Dana L. Nettles
    • 2
  • Joel D. Bumgardner
    • 1
  1. 1.Biomedical Engineering Program, Department of Agricultural and Biological EngineeringMississippi State University
  2. 2.Department of Agricultural and Biological EngineeringMississippi State University

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