Synthesis of Nanocrystalline Hydroxyapatite by Natural Biopolymers Based Sol-Gel Technique

Abstract:

Nanocrystalline hydroxyapatite (HAp) powders were successfully synthesized by natural biopolymers based sol-gel technique. The biopolymers were extracted from the leaves of Yanang (Tiliacora triandra), Krueo Ma Noy (Cissampelos pareira) and Konjac (Amorphophallus konjac). To obtain HAp powders, the prepared precursors were calcined in air at 600, 700, and 800 °C for 2 h. The phase composition of the calcined samples was studied by X-ray diffraction (XRD) technique. The XRD results confirmed the formation of HAp phase with a small trace of β-tricalcium phosphate (β-TCP). The crystalline sizes of the samples were found to be 20-50 nm as evaluated by the XRD line broadening method. TEM investigation revealed that the synthesized HAp samples consisted of nanoparticles with a particle size in the range of 50-100 nm in diameter. The corresponding selected area electron diffraction (SAED) analysis further confirmed the formation of hexagonal structure of HAp.

• Periodical: Advanced Materials Research (Volume 747)
• Pages: 83-86
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.747.83
• Online since: August 2013
• Authors: Jutharatana Klinkaewnarong, Ekaphan Swatsitang
• Keywords: Electron Microscopy, Hydroxyapatite (HA), Konjac, Krueo Ma Noy, Natural Biopolymer, X-Ray Diffraction (XRD), Yanang

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