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Proceedings Paper

Synthesis and characterization of porous nanocrystalline biphasic calcium phosphate for bio applications
Author(s): P. Michael S. L. Shanthi; M. Ashok; T. Balasubramanian
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Paper Abstract

The nano crystalline biphasic calcium phosphates of hydroxyapatite (HAp)/β-tricalcium phosphate (β-TCp) in the ratio 80:20 and 72:28 with interconnected porosity have successfully been prepared by co-precipitation method using mixed catanionic surfactants as template. The sample was calcinated at various temperatures for 8 h. The samples were characterized using X-ray diffraction, Fourier transform infrared spectroscopy, Field emission scanning electron microscopy (FESEM) and thermal analyser. The samples calcinated at 750°C and 850°C show 75% and 89% of crystallinity respectively. Usually to obtain the biphasic calcium phosphates, either the medium will be set as acidic by altering the pH or the Ca/P ratio can be set below the value of 1.5. However this experiment was neither conducted with low Ca/P ratio (≤1.5) nor at low pH (≤7) to obtain the mixed phase. The combination of surfactants and calcination temperature controls the HAp/β-TCp ratio.

Paper Details

Date Published: 10 October 2012
PDF: 7 pages
Proc. SPIE 8464, Nanobiosystems: Processing, Characterization, and Applications V, 846411 (10 October 2012); doi: 10.1117/12.930449
Show Author Affiliations
P. Michael S. L. Shanthi, National Institute of Technology, Tiruchirappalli (India)
M. Ashok, National Institute of Technology, Tiruchirappalli (India)
T. Balasubramanian, National Institute of Technology, Tiruchirappalli (India)


Published in SPIE Proceedings Vol. 8464:
Nanobiosystems: Processing, Characterization, and Applications V
Norihisa Kobayashi; Fahima Ouchen; Ileana Rau, Editor(s)

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