Mg substituted apatite coating from alkali conversion of acidic calcium phosphate
| Autor: | Rubens Lincoln Santana Blazutti Marçal, Leila Rosa de Oliveira Cruz, Marcelo Henrique Prado da Silva, Daniel Navarro da Rocha, Dindo Q. Mijares, José Brant de Campos, Paulo G. Coelho |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Calcium Phosphates
Materials science chemistry.chemical_element Bioengineering 02 engineering and technology Alkalies Calcium 010402 general chemistry 01 natural sciences Apatite Biomaterials Coated Materials Biocompatible X-Ray Diffraction Apatites Spectroscopy Fourier Transform Infrared Magnesium Brushite Fourier transform infrared spectroscopy Magnesium ion Ions Metallurgy 021001 nanoscience & nanotechnology 0104 chemical sciences Molecular Weight chemistry Mechanics of Materials Inductively coupled plasma atomic emission spectroscopy visual_art visual_art.visual_art_medium Chemical stability 0210 nano-technology Acids Nuclear chemistry |
| Zdroj: | Materials Science and Engineering: C. 70:408-417 |
| ISSN: | 0928-4931 |
| DOI: | 10.1016/j.msec.2016.09.021 |
| Popis: | In this work, two solutions were developed: the first, rich in Ca2+, PO43- ions and the second, rich in Ca2+, PO43- and Mg2+, defined as Mg-modified precursor solution. For each Mg-modified precursor solution, the concentrations of Mg2+ ions were progressively increased by 5%, 10% and 15%wt. The aims of this research were to investigate the influence of magnesium ions substitution in calcium phosphate coatings on titanium surface and to evaluate these coatings by bioactivity assay in McCoy culture medium. The obtained coatings were characterized by X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) analysis, and the presence of Mg ions was confirmed by the inductively coupled plasma atomic emission spectroscopy (ICP) analysis. In vitro bioactivity assay in McCoy culture medium showed bioactivity after 14days in incubation for the HA and 10% Mg-monetite coatings. The high chemical stability of Mg-HA coatings was verified by the bioactivity assays, and no bone-like apatite deposition, characteristic of bioactivity, was observed for Mg-HA coatings, for the time period used in this study. |
| Databáze: | OpenAIRE |
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