Ultrasound Research Today is a free monthly online journal that collates and summarizes the latest research about Ultrasound, including details on screening, diagnosis, pregnancy, detection.

Synthesis of nano-hydroxyapatite under a sonochemical/hydrothermal condition.

Manafi SA, Yazdani B, Rahimiopour MR, Sadrnezhaad SK, Amin MH, Razavi M

Ceramic Department, Materials and Energy Research Center, PO Box 14155-4777, Tehran, Iran.

In this study, hydroxyapatite (denoted as HAp) nanostructure with uniform morphologies, controllable size, nano-dispersion and narrow size distribution in diameter has been synthesized successfully by low-temperature hydrothermal process, and the as-synthesized powders were characterized by XRD, scanning electron microscopy, high-resolution transmission microscopy, FT-IR, Zetasizer and inductively coupled plasma. In the present work, a novel sonochemical technique using CaHPO(4)2H(2)O/NaOH/distilled water with cetyltrimethylammonium bromide ((CH(3)(CH(2))(15)N(+)(CH(3))(3)Br(-)) designated as CTAB) under a hydrothermal condition to synthesize HAp nanostructure was described. Furthermore, the usage of a high basic condition and a water environment are the two crucial keys in ensuring the formation of HAp in the hydrothermal/sonochemical processes. However, the crystallite size and crystallinity degree of the HAp increased with increasing annealing temperature. Indeed, the present work will introduce a new method in synthesizing HAs for scientific and medical engineering.

Published 4 June 2008 in Biomed Mater, 3(2): 25002.
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