Bioresorbable carbonated hydroxyapatite Ca10−xNax(PO4)6−x(CO3)x(OH)2 powders for bioactive materials preparation

• Authors: Elena Kovaleva , Maxim Shabanov , Valery Putlyaev , Yury Tretyakov , Vladimir Ivanov , Nikolay Silkin
• Languages of publication: EN

Abstracts

EN

The purpose of this work was to find and investigate a correlation between the carbonate ion content in crystalline lattice and defect structure, and solubility of the materials; finally, to prepare the materials under study for in vitro tests. Various techniques, such as XRD, FTIR, TEM, FESEM/EDX, TG/DTA, AES (ICP), wet chemical analysis, Ca-ionometry, microvolumetric analysis of evolved CO2, BET adsorption, were applied to determine the efficiency of carbonate substitution, and to quantify the elemental composition, as well as to characterize the structure of the carbonated hydroxyapatite and the site(s) of carbonate substitution,. It was shown that AB-type substitution prevails over other types with the carbonate content increase. According to in vitro tests, the bioactivity of the samples is correlated with the carbonate content in carbonate-doped hydroxyapatite due to accumulation of defects in carbonated hydroxyapatite nanocrystals. [...]

Keywords

EN

Carbonated hydroxyapatite; Aliovalent doping; Microstructure; Resorption

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2009
• Volume: 7
• Issue: 2
• Pages: 168-174

Dates

published

1 - 6 - 2009

online

9 - 4 - 2009

Contributors

author

Elena Kovaleva

• Department of Materials Science, Lomonosov Moscow State University, 119992, Moscow, Russia

author

Maxim Shabanov

• Department of Materials Science, Lomonosov Moscow State University, 119992, Moscow, Russia

author

Valery Putlyaev

• Department of Materials Science, Lomonosov Moscow State University, 119992, Moscow, Russia

author

Yury Tretyakov

• Department of Materials Science, Lomonosov Moscow State University, 119992, Moscow, Russia

author

Vladimir Ivanov

• Laboratory of Chemical Synergy, Kurnakov Institute of General and Inorganic Chemistry of RAS, 119991, Moscow, Russia

author

Nikolay Silkin

• Department of Radio Spectroscopy and Quantum Electronics, Kazan State University, 420008, Kazan, Russia

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Identifiers

DOI

10.2478/s11532-009-0018-y