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Formation and Characterization of Hydroxyapatite/Chitosan Composite: Effect of Composite Hydroxyapatite Coating and its Application on Biomedical Materials

  • S. Mulijani
  • G. Sulistyso

Abstract

Natural bone is actually an inorganic/organic composite mainly made up of nano-structure hydroxyapatite (Ca10(PO4)6(OH)2, HAp) and collagen fibers. It is of most importance to synthesize nano-composites of inorganic/organic in order to have good biocompatibility, high bioactivity and great bonding properties. In this study, HAp nano-particle and HAp/chitosan (CTS) nanocomposite with a homogeneous microstructure were prepared and characterized. It is proposed that the nano-structure of hydroxyapatite/chitosan composite will have the best biomedical properties in the biomaterials applications. The mechanism of formation of the composite and the effects of inorganic component (n-HA) on the porous morphologies were investigated by using of FTIR, XRD, and SEM. Cathodic electrophoretic deposition has been utilized for the fabrication of composite hydroxyapatite-chitosan coatings on 316L stainless steel substrates. The addition of chitosan to the hydroxyapatite suspensions promoted the electrophoretic deposition of the hydroxyapatite nanoparticles and resulted in the formation of composite coatings. The obtained coatings provided the corrosion protection for the 316L stainless steel substrates.

Keywords

Polylactic Acid Composite Coating Chitosan Solution Biphasic Calcium Phosphate Electrophoretic Deposition 
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

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • S. Mulijani
    • 1
  • G. Sulistyso
    • 2
  1. 1.Department of Chemistry, Faculty of Mathematics and Natural SciencesBogor Agricultural UniversityBogorIndonesia
  2. 2.National Atomic Energy Agency (BATAN)SerpongIndonesia

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