Extraction and Characterization of Novel Natural Hydroxyapatite Bioceramic by Thermal Decomposition of Waste Ostrich Bone

Komal Prasad Malla; Sagar Regmi; Achyut Nepal; Sitaram Bhattarai; Ram Jeewan Yadav; Shinichi Sakurai; Rameshwar Adhikari

doi:10.1155/2020/1690178

Extraction and Characterization of Novel Natural Hydroxyapatite Bioceramic by Thermal Decomposition of Waste Ostrich Bone

Int J Biomater. 2020 Aug 28:2020:1690178. doi: 10.1155/2020/1690178. eCollection 2020.

Authors

Komal Prasad Malla^{1

2

3}, Sagar Regmi^{1

4}, Achyut Nepal¹, Sitaram Bhattarai⁵, Ram Jeewan Yadav⁶, Shinichi Sakurai⁷, Rameshwar Adhikari^{1

2}

Affiliations

¹ Research Centre for Applied Science and Technology (RECAST), Tribhuvan University, Kirtipur, Kathmandu, Nepal.
² Central Department of Chemistry, Tribhuvan University, Kirtipur, Kathmandu, Nepal.
³ School of Health and Allied Sciences, Pokhara University, Pokhara, Nepal.
⁴ Nepal Academy of Science and Technology (NAST), Khumaltar, Lalitpur, Nepal.
⁵ Department of Chemistry, Tri-Chandra Multiple Campus, Tribhuvan University, Kathmandu, Nepal.
⁶ Department of Chemsitry, Prithvi Narayan Campus, Tribhuvan University, Pokhara, Nepal.
⁷ Department of Biobased Materials Science, Kyoto Institute of Technology, Kyoto, Japan.

Abstract

A novel natural hydroxyapatite (HAp) bioceramic was extracted from the ostrich cortical bone by the thermal decomposition method. HAp was characterized by different analytical tools such as thermogravimetric analysis (TGA), Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) analysis, and scanning electron microscopy (SEM). Removal of organic impurities from the bone powder was confirmed by TGA analysis. FTIR spectra of HAp confirmed the presence of the major functional groups such as phosphate (PO₄ ^3-), hydroxyl (OH^-), and carbonate (CO₃ ^2-) in the bioceramic. The XRD data revealed that the HAp was the crystalline phase obtained by calcination of the bone powder at 950°C, and the SEM analyses confirmed the typical plate-like texture of the nanosized HAp crystals.