Abstract:
Hydroxyapatite (HAp) plays an important role in the medical field such as bone tissue engineering, dentistry applications such as teeth bleaching therapy, demineralizing agent in toothpastes, orthopedic and dental implant coating etc. Most materials used for hydroxyapatite production are expensive and contains chemicals that might have side effect on the human body when used. The need for alternative source for hydroxyapatite production that is cheap and non-toxic has made researchers to look at animal bone and other bio-wastes as good alternatives at the same time solving environmental pollution caused by this waste. This research work synthesizes hydroxyapatite from turkey and duck bones at 800oC using calcination/thermal decomposition techniques and comparing the HAp from both bones. The result showed that hydroxyapatite were successfully synthesized from turkey and duck bone. The diffraction peaks 002, 221, and 300 at 2 theta angles 26o, 31o and 32o confirms the formation hydroxyapatite in turkey bone and diffraction peaks 002, 221, 300 and 202 at 2 theta angles 26 o, 31 o, 32 o and 33 o confirms the formation hydroxyapatite from duck bones. The SEM image for hydroxyapatite for both turkey and duck showed that they are porous microcrystalline aggregates with irregular shapes. Turkey HAp looks more crystalline and compact compared to that of duck which looks rough and aggregated. The EDX analysis for Turkey HAp and Duck carried out showed Calcuim/Phosphorus (Ca/P) ratio of 1.83 and 1.85 respectively with negligible difference and falls within the stoichiometric acceptable range for Ca/P in HAp. This makes Turkey and Duck HAp good candidate for medical and other biomedical applications.
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