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Information × Registration Number 0222U001559, 0121U110014 , R & D reports Title Nano- and biohybrid composites as advanced components of magnetically controlled systems with targeted localization and heat action popup.stage_title Head Tovstolytkin Oleksandr I., Доктор фізико-математичних наук Registration Date 28-01-2022 Organization Institute of Magnetism NAS of Ukraine and MES of Ukraine popup.description2  .) Object of research: magnetic nanoparticles of ferrites of different structural type and biohybrid compositions "bacterium-nanoparticles"; structural, morphological and magnetic parameters of nanoparticles and composites. Subject of research: ways to control the physical parameters of the developed nanomaterials, features of their interaction with magnetic fields, methods of control of localization and thermal action. During the first stage of research, the regularities of the influence of synthesis and chemical composition on the morphological properties of nanoparticles of ferromagnetic spinels of different composition (Fe, Ni, Co, Mn, Zn) FeO2; Fe3O4 / CoFe2O4 core-shell system; nickel-zinc spinels Ni1 − xZnxMn2O4 and a systems based on alkaline earth metals (La, Sr) MnO3 were studied. To obtain magnetic nanoparticles, precipitation methods, cryochemical methods, methods of precipitation from aqueous and non-aqueous solutions were used. It is shown that there is no single method for the synthesis of magnetic nanoparticles with reliably tunable and reproducible parameters. The regularity of the influence of synthesis conditions and chemical composition on the magnetic properties and thermal efficiency of ferrite nanoparticles of different chemical composition and structural type is determined. The mechanisms of energy dissipation of the alternating magnetic field by the developed objects and the determined ways of influencing the thermal efficiency of such objects are clarified. The results are obtained on effect of the synthesis conditions on settings and optimization of open parameters of ferrite spinel nanoparticles for their use in various technological and biological medical applications. Product Description popup.authors Derecha Dmytro O. Kravets Anatoly Fedorovych Polischuk Dmitriy M Tovstolytkin О. І. popup.nrat_date 2022-03-09 Close