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0210U003305,
0107U001461
,
Bioactive Calcium hydroxyapatite and polyoxometalates of d- and f-elements for medical materials creation.
Rozantsev Georgy Mihailovich, Доктор хімічних наук
28-01-2010
Donetsk National University
Complexation processes in the system Nb6O198--WO42--H+-H2O were investigated by рН-potentiometric titration and mathematical modeling (quasi-Newton, CLINP 2.1, Pitzer) methods. Diagrams of anions distribution in a solution were built. Concentration and thermodynamic constants of formation of the mixed isopoly niobotungstate anions were calculated. Laboratory procedures of synthesis of individual Lead (+2) isopoly tungstates, and heteropoly compounds with Anderson-Evans structure were elaborated. All the salts synthesized were investigated by the methods of elemental analysis, FTIR spectroscopy, XRD and DTA. Direct X-ray single-crystal study of Na4[Ni(OH)6W6O18]*16H2O were carried out. Interactions in the system Ca2+ - Al3+ - PO43- - SiO32- - OH- - H2O were investigated with the purpose of elaborating of the calcium hydroxyapatite modified by aluminum and silicon ions. Phase composition of precipitation products of the system after heat treatment at 1000оС were established on the results of elemental analysis, XRD, and FTIR spectroscopy data. Solids represent an intermixture of calcium aluminosilicates with the modified hydroxyapatite. Compositions of medicals were recommended on the basis of the biofissile calcium hydroxyapatite which were offered in the capacity of therapeutic and medical drugs in stomatology.
Білоусова Катерина Євгенівна
Вавілова Світлана Михайлівна
Заславська Людмила Володимирівна
Радіо Сергій Вікторович
2020-04-02
Updated: 2025-12-09
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