Spectroscopic characterization of porous nanohydroxyapatite synthesized by a novel amino acid soft solution freezing method |
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Authors: | D Gopi J Indira V Collins Arun Prakash L Kavitha |
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Institution: | aDepartment of Chemistry, Periyar University, Salem 636 011, Tamilnadu, India;bDepartment of Physics, Periyar University, Salem 636 011, Tamilnadu, India |
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Abstract: | In this paper, we have reported a novel method to synthesize nanoporous hydroxyapatite (HAP) powders by freezing organic–inorganic soft solutions. The formation of porous and crystalline HAP nanopowder was achieved via calcining the samples at 600 °C followed by sintering at temperatures ranging from 900 °C to 1100 °C. The samples were analyzed by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopic (SEM) techniques. The results showed the formation of a carbon free nanoporous hydroxyapatite powders due to the decomposition of organic template enclosing the precipitated HAP. It was also observed that the rapid grain growth with retainment of pores while the crystallinity of the HAP nanopowder increased with the increase in sintering temperature which is substantiated from the XRD and SEM results. Such organized porous materials can act as a better biomaterial for bone tissue engineering. |
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Keywords: | Hydroxyapatite Freezing synthesis Template Porous Biomaterials |
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