Факультет електроніки та інформаційних технологій (ЕлІТ)
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Item Structural Properties of the Nanocrystallized Magnetite of Different Syntheses(Sumy State University, 2013) Kuznetsov, V.N.; Stanislavov, A.S.; Danilchenko, S.N.; Kalinkevich, O.V.; Kalinkevich, A.N.; Sukhodub, Leonid Fedorovych; Суходуб, Леонід Федорович; Суходуб, Леонид ФедоровичTransmission electron microscopy (TEM) with electronic diffraction and X-ray diffraction (XRD) was used to study structural features of nanosized magnetite Fe3O4, which was synthesized using polymeric matrices (polysaccharide chitosan, at alias). From the received data it was revealed that growth inhibition and size stabilization of Fe3O4 nanoparticles were strongly affected by polysaccharide matrix. It was also observed that directional size decrease of Fe3O4 nanoparticles was accompanied by the increasing defectiveness of crystal lattice and decreasing unit cell size. The effectiveness of complementary use of both TEM with electronic diffraction and XRD techniques for structural and substructural parameters determination while studying magnetite nanosized particles synthesized in polysaccharide matrices is shown in this paper. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35450Item Functional Coatings Based on Hydroxyapatite and Polymers Formed on Ti-6Al-4V Substrates(Sumy State University, 2013) Yanovska, G.O.; Kuznetsov, V.M.; Stanislavov, O.S.; Суходуб, Леонід Федорович; Суходуб, Леонид Федорович; Sukhodub, Leonid FedorovychThe paper describes perspective technology for deposition of inorganic-organic coatings used for biomedical application. Synthetic hydroxyapatite was used as inorganic compound, due to the similarity of the main component to bone tissue. As organic components we used chitosan and alginate – natural biopolymers, which widely used for bioactive and biocompatible composites formation. Thermal substrate method used for coatings deposition based on principle of decreasing solubility of hydroxyapatite with increasing of substrate temperature and allow to deposit coatings at substrate temperatures below 100 °C. Porous composite hydroxyapatite-chitosan and hydroxyapatite-alginate coatings were obtained on Ti-6Al-4V substrates. Morphology, phase composition and adhesion to the substrate surface were investigated. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35297