Место издания:Kazan Federal University Kazan, Russia
Первая страница:60
Последняя страница:62
Аннотация:Synthetic hydroxyapatite (HAP) Са10(РО4)6(ОН)2 – widespread material that used in
medicine for treatment of damaged bone tissue due to chemical and stage similarity with
inorganic components of bone tissue. For enhancement of efficiency of bioresorbable
implants as substitutes of bone tissue it is possible to use a material bases on carbonized
hydroxyapatite Ca10-xNax(PO4)6-x(СO3)x(OH)2, in which РО4 group partially replaced by СO3
group. It is more precisely reproduce the structure of bone in comparison with not modified
hydroxyapatite.
The CW X-band EPR spectra of carbonized and doped with manganese hydroxyapatite
were measured and interpreted, their spectroscopic and relaxation characteristics were
obtained. Measurements showed that the concentration of complexes NO32- is equal in the
samples of carbonated hydroxyapatite and HAP dopes with manganese. The study of samples
of hydroxyapatite doped with manganese ions showed higher probability of complex
formation of manganese ions and NO3 groups within the crystal structure of hydroxyapatite.
The results can be useful for the modernization of the synthesis of nanocrystalline
hydroxyapatite.
