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Hydroxyapatite, HA (Ca10(PO4)6(OH)2), is an effective inorganic material with high degree of crystallinity and chemical stability. HA was synthesized from disposal waste such as egg shells or cattle bones to reduce production cost. The nanosized HA was obtained from precipitation technique. Many characterization techniques such as TEM, XRD, TGA, FTIR, were used to ascertain HA structure. HA was fabricated in a variety of forms, i.e.; whisker, porous structure and HA substrate with nanofiber. These products can be applied in biomedical and environmental purposes. In this research work, all processes were carried out with nontoxic chemicals and environmentally friendly substances.
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