Hydroxyapatite Lab Report

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Chapter 5 Synthesis procedure of hydroxyapatite 5.1 HYDROXYAPATITE 5.1.1 INTRODUCTION A vast number of research efforts were made during the past few decades directed towards the synthesis of various biomaterials for biomedical applications. Hydroxyapatite (HAp) is a bio-ceramic and noteworthy among various classes of biomaterials due to its wide range of applications in orthopaedics and dentistry. Naturally occurring HAp crystallizes is in hexagonal crystal system (P63/m) having the chemical formula of one unit cell being Ca10(PO4)6(OH)2. Moreover, HAp is an important inorganic osteoconductive bio-ceramic which has attracted the attention of researchers due to its close resemblance with bone apatite and excellent biocompatibility. Hap calcium phosphate is a bio-ceramic material of chemical and mineralogical…show more content…
Energy dispersive spectroscopy was performed from the centre to the periphery of the sample to determine the compositional homogeneity throughout the specimen. The compositional analysis was carried out, and elemental composition was quantified by using the Cliff and Lorimer method. Figure11 portrays the scanning electron micrograph of the synthesized nanoparticles whose grain size ranges from of 28-31 nm, confirming the existence of uniform morphology throughout the sample. The micrograph also reveals that morphology of the nanoparticle to be needle-like with soft agglomeration. It is evident from the image that the nanoparticles are dense distributed throughout the sample. Apart from being closely packed they have a clear boundary between each particle throughout the surface. The energy dispersive X-ray (EDX) analysis confirms the presence calcium and phosphorus in an atomic ratio of 1.67 along with oxygen with no impurity except

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