Synthesis of Magnesium- and Silicon-modified Hydroxyapatites by Microwave-Assisted Method

Liudmila A. Rasskazova, Ilya V. Zhuk, Natalia M. Korotchenko, Anton S. Brichkov, Yu Wen Chen, Evgeniy A. Paukshtis, Vladimir K. Ivanov, Irina A. Kurzina, Vladimir V. Kozik

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

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 SiO4 4− 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 < SiHA < MgHA, which was calculated through data specific surface area and measured pycnometric density of the powders. The Lewis acid sites (Ca2+, 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.

Original languageEnglish
Article number14836
JournalScientific Reports
Volume9
Issue number1
DOIs
StatePublished - 1 Dec 2019

Fingerprint

Dive into the research topics of 'Synthesis of Magnesium- and Silicon-modified Hydroxyapatites by Microwave-Assisted Method'. Together they form a unique fingerprint.

Cite this