期刊
MATERIALS LETTERS
卷 124, 期 -, 页码 208-211出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2014.03.054
关键词
Nanocrystalline materials; Biomaterials; Nanoparticles; Microwave; Hydroxyapatite
资金
- National Natural Science Foundation of China [51172260, 51102258, 81171727]
- Science and Technology Commission of Shanghai [11nm0506600, 11nm0503600, 13JC1407300]
Calcium phosphates are important biomaterials for biomedical applications. Herein, we report microwave-assisted hydrothermal rapid synthesis of amorphous calcium phosphate (ACP) nanoparticles and hydroxyapatite (HAP) microspheres using cytidine 5'-triphosphate disodium salt as a phosphate source. This synthesis method does not need any surfactant and is very rapid (1 min at 150 degrees C). The pH value has a significant effect on the morphology and crystallinity of the product. Aggregated ACP nanoparticles, hierarchically nanostructured solid HAP micro-Spheres and hollow HAP microspheres are obtained at pH 7.0, 5.0 and 4.3, respectively. The as-prepared products are characterized by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FFIR) and thermogravimetric (TG) analysis. (C) 2014 Elsevier B.V. All rights reserved.
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