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Organic–inorganic interaction between hydroxyapatite and gelatin with the aging of gelatin in aqueous phosphoric acid solution

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Abstract

Hydroxyapatite (HAp)/gelatin (GEL) nanocomposite was prepared by the solution-precipitation process using Ca(OH)2 in water and aqueous solution of H3PO4 in GEL. Before the co precipitation process the GEL powders were dissolved in the aqueous phosphoric acid solution for the phosphorylation of GEL molecules. The chemical variation of the phosphorylated GEL macromolecules was investigated by using attenuated total reflection (ATR) measurement. The crystal growth of HAp became bigger with the long-time aging of the GEL molecules in the phosphoric acid solution, and it resulted from the reduction of length scale of the GEL molecules. The degree of the organic–inorganic interaction was decreased because of the degradation of the GEL macromolecules.

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Authors and Affiliations

  1. MDRCBB, School of Dentistry, University of Minnesota, 16-280 Moos Tower, 515 Delaware S. E., Minneapolis, MN, 55455-0329, USA

    Myung Chul Chang

  2. School of Material Science and Chemical Engineering, Kunsan National University, Kunsan, 573-701, South Korea

    Myung Chul Chang

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  1. Myung Chul Chang
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Correspondence to Myung Chul Chang.

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Chang, M.C. Organic–inorganic interaction between hydroxyapatite and gelatin with the aging of gelatin in aqueous phosphoric acid solution. J Mater Sci: Mater Med 19, 3411–3418 (2008). https://doi.org/10.1007/s10856-008-3488-0

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  • DOI: https://doi.org/10.1007/s10856-008-3488-0

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