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|Title:||Accelerated sonochemical synthesis of calcium deficient hydroxyapatite nanoparticles: structural and morphological evolution|
Sampath Kumar, T.
|Citation:||Journal of Biomaterials and Tissue Engineering, 2014; 4(4):295-299|
|Publisher:||American Scientific Publishers|
|Varadarajan Namitha, Balu Rajkamal, Rana Deepti, Ramalingam Murugan, Kumar T. S. Sampath|
|Abstract:||Calcium deficient hydroxyapatite (CDHA) nanoparticles with a Ca/P ratio of 1.6 were synthesized by accelerated sonochemical process. The synthesis was carried out using calcium nitrate and diammonium hydrogen phosphate in an ultrasonic bath operated at a fixed frequency of 135 kHz and 250 Watts power. The effect of ultrasonic radiation as a function of time over the formation and structure of nanoparticles were investigated using X-ray diffraction, spectroscopy and microscopy methods. The synthesized nanocrystals showed X-ray powder diffraction pattern corresponding to that of hydroxyapatite stoichiometry with CDHA characteristics. HPO2– 4 Fourier transform infrared vibration band observed at 875 cm–1. Transmission electron microscopic analysis confirmed the nanocrystalline nature and growth of acicular, rod and needle-like CDHA nanocrystals morphology with increasing irradiation time.|
|Keywords:||Calcium deficient hydroxyapatite; morphology; nanoparticles; sonochemical; structure|
|Rights:||© AMERICAN SCIENTIFIC PUBLISHERS|
|Appears in Collections:||Biochemistry publications|
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