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Information × Registration Number 0212U002638, 0110U003465 , R & D reports Title Isopoly and Heteropoly Compounds of d- and f-Elements and Modified Bioactive Calcium hydroxyapatite for Medicine. popup.stage_title Head Rozantsev Georgy Mihailovich, Доктор хімічних наук Registration Date 16-01-2012 Organization Donetsk National University popup.description2 The complex formation processes are investigated in systems "potassium hexaniobate - sodium tungstate - chloride acid - water" and "sodium heteropoly decatungstoneodymate (III) - chloride acid (sodium hydroxide) - water" with the general concentration of 0,01-0 0001 mol/L and different background electrolytes by the pH-potentiometric titration method and mathematic modeling. The ranges of dominance of various forms of isopoly and heteropoly anions are determined. Quantitative characteristics of the formation of polyanions (concentration and thermodynamic equilibrium constants of formation, Gibbs free energy) are calculated. The conditions of formation of individual and mixed polyanions are determined. All the salts synthesized are investigated by the methods of X-ray single crystal, XRD, DTA and IR spectroscopy. Checked antimicrobial action of solutions of sodium decatungstoneodymate(III), which is manifested in the overwhelming effect on gram-positive bacteria (MIC=0.005M) and morphological changes of gram-negative microorganisms. Physico-chemical studies of the interaction of system components "calcium hydroxyapatite - sodium perborate" and "calcium hydroxyapatite - calcium perborate" possible to optimize the consistency of medicinal and cosmetic compositions for color correction of tooth enamel and to establish conditions under which a better therapeutic effect. Clinical trials is conducted. Product Description popup.authors Білоусова Катерина Євгенівна Вавілова Світлана Михайлівна Заславська Людмила Володимирівна Радіо Сергій Вікторович popup.nrat_date 2020-04-02 Close