1. Synthesis of Magnesium- and Silicon-modified Hydroxyapatites by Microwave-Assisted Method
- Author
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I. V. Zhuk, Yu Wen Chen, Natalia Korotchenko, Irina Kurzina, L. A. Rasskazova, Evgeniy A. Paukshtis, Vladimir Ivanov, Vladimir V. Kozik, and Anton S. Brichkov
- Subjects
Materials science ,Silicon ,Simulated body fluid ,lcsh:Medicine ,chemistry.chemical_element ,Infrared spectroscopy ,02 engineering and technology ,engineering.material ,010402 general chemistry ,01 natural sciences ,Article ,Larnite ,Hydroxyapatites ,lcsh:Science ,Multidisciplinary ,Magnesium ,Biological techniques ,lcsh:R ,Molecular biophysics ,021001 nanoscience & nanotechnology ,Chemical biology ,female genital diseases and pregnancy complications ,0104 chemical sciences ,chemistry ,Whitlockite ,engineering ,lcsh:Q ,Particle size ,0210 nano-technology ,Nuclear chemistry - Abstract
Nanopowders of hydroxyapatite (HA), modified by magnesium (MgHA) and by silicon (SiHA) were obtained by liquid-phase microwave synthesis method. X-ray diffraction and IR spectroscopy results showed that Mg2+ and SiO44− ions were present in the synthesized products both as secondary phases and as part of the HA phase. Whitlockite was found in the magnesium-modified HA (MgHA) and larnite was found in the silicon-modified HA (SiHA); ion substitution for both materials resulted in solid solutions. In the synthesized samples of modified HA, the increase of particle size of powders was in the order HA 2+, Mg2+, Si4+) were present using spectral probes on the surface of the samples of HA, MgHA, and SiHA, and the acidity of these sites decreased in the order SiHA > MgHA > HA. The rates of calcium phosphate layer deposition on the surface of these materials at 37 °C in the model simulated body fluid solution showed similar dependence.
- Published
- 2019
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