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The Scientific World Journal
Volume 2014 (2014), Article ID 275984, 7 pages
Research Article

Microwave Irradiation of Nanohydroxyapatite from Chicken Eggshells and Duck Eggshells

Department of Biomedical Engineering, Faculty of Engineering, University of Malaya and PPP, 50603 Kuala Lumpur, Malaysia

Received 9 July 2014; Revised 4 September 2014; Accepted 5 September 2014; Published 14 October 2014

Academic Editor: Saeid Zanganeh

Copyright © 2014 Nor Adzliana Sajahan and Wan Mohd Azhar Wan Ibrahim. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Due to similarity in composition to the mineral component of bones and human hard tissues, hydroxyapatite with chemical formula Ca10(PO4)6(OH)2 has been widely used in medical field. Both chicken and duck eggshells are mainly composed of calcium carbonate. An attempt has been made to fabricate nanohydroxyapatite (nHA) by chicken (CES) and duck eggshells (DES) as calcium carbonate source (CaCO3). CES and DES were reacted with diammonium hydrogen [(NH4)2HPO4] solution and subjected to microwave heating at 15 mins. Under the effect of microwave irradiation, nHA was produced directly in the solution and involved in crystallographic transformation. Sample characterization was done using by X-ray diffraction (XRD), fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM).