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Hydroxyapatite Synthesis Using Chicken Eggshell As Calcium Precursor

  • : Jose Brant de Campos1, Marilza Sampaio Aguilar2, Bruno Cavalcanti do Lello2, Nataly Cristiane Campos2
  • : 1Rio de Janeiro State University, 2Universidade Estácio de Sá (UNESA)
  • : PDF Download
  • : 2016


Hidroxyapatite (HAP) is a bioceramic material and it has been used clinicaly as bone replacement due to its chemical composition and biological characteristics similar to the natural bone.

The production of HAP is usually made by precipitation route where Ca (NO3)2, Ca(OH)2 or CaCl2 are the main Calcium ion precursors. In this work, those ion precursors have been obtained by the use of chicken eggshell.

The HAP characterizations have been performed using X-ray diffraction (XRD) for phase formation identification, scanning electron microscopy (SEM) to evaluate the particle size and morphology and Brunauer-Emmett-Teller technique (BET) for the determination of the specific surface area and the porous volume size distribution.

XRD measurements have revealed HAP as the only phase in the synthetised material. SEM has shown the presence of a fine size particle dispersion with homogenious aglomerates. BET results have demonstrated the presence of microporous and a low specific surface area value.


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