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dc.contributor.authorAsadul Haq, Ali Hamidi-
dc.date.accessioned2019-05-02T08:43:12Z-
dc.date.available2019-05-02T08:43:12Z-
dc.date.issued2016-06-
dc.identifier.urihttp://dspace.unimap.edu.my:80/xmlui/handle/123456789/59711-
dc.descriptionAccess is limited to UniMAP community.en_US
dc.description.abstractThe focus of bone graft properties has developed through generations, from the ability to withstand mechanical stress to the ability to integrate with the biological structure. In recent years, the use of hydroxyapatite (HA) as bone graft material in orthopedic and dental applications has been increasing. HA is a natural occuring mineral with excellent bioactivity but relatively poor mechanical properties. It constitutes 96% portion of enamel in teeth and 67% portion of bone. HA can be extracted from animal bones or fabricated from synthetic or biologic sources. In this study, eggshells were used as raw material to synthesize eggshell-derived HA (EHA) via mechanochemical method. The synthesis of EHA involved CaO, which was obtained from the calcination of eggshells, and reaction with dicalcium hydrogen phosphate dihydrous (DCPD) or phosphoric acid (H3PO4). The effects of rotational speed and heat treatment temperature on EHA’s characteristics were investigated. The characterization studies were carried out by using the Fourier Transform Infrared Spectroscopy (FTIR), X-Ray Diffraction (XRD) analysis and Scanning Electron Microscopy (SEM). HA powder was successfully synthesized with crystallite and particle sizes in the range of 8–47 nm and 250–550 nm respectively. It was observed from this study that the increase of milling rotational speed had increased the phase purity of EHA samples. Furthermore, the higher heating temperature of HA samples resulted in higher degree of crystallinity of HA and the appearance of β-tricalcium phosphate (β-TCP) as secondary phase.en_US
dc.language.isoenen_US
dc.publisherUniversiti Malaysia Perlis (UniMAP)en_US
dc.subjectHydroxyapatite (HA)en_US
dc.subjectMedical applicationsen_US
dc.subjectEggshellsen_US
dc.subjectEggshell-derived HA (EHA)en_US
dc.subjectMechanochemical methoden_US
dc.titleSynthesis and characterization of Eggshell-derived Hydroxyapatite via mechanochemical method: a comparative studyen_US
dc.typeLearning Objecten_US
dc.contributor.advisorDr. Midhat Nabil Ahmad Salimien_US
dc.publisher.departmentSchool of Bioprocess Engineeringen_US
Appears in Collections:School of Bioprocess Engineering (FYP)

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Abstract,Acknowledgement.pdf309.43 kBAdobe PDFView/Open
Introduction.pdf196.38 kBAdobe PDFView/Open
Literature Review.pdf358.83 kBAdobe PDFView/Open
Methodology.pdf417.74 kBAdobe PDFView/Open
Results and Discussion.pdf1.97 MBAdobe PDFView/Open
Conclusion.pdf188.38 kBAdobe PDFView/Open
References and appendix.pdf4.89 MBAdobe PDFView/Open


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