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Timestamp: 2019-04-20 02:24:01+00:00

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Article. Politov A. A., Fursenko B. A., Prosanov I. Yu, Mytnichenko S. V., Boldyrev V. V. Phase transition in the non-stoichiometric zinc oxide under high pressure // Doklady - Akademiya Nauk SSSR, Earth Science Sections. Akademiia Nauk Sssr. Russian Federation. - P.194-196. - ISSN 00023264. The influence of metal zinc additives on the dynamics of reconstructive phase transition in zinc oxide is studied. The phase transition from cubic high pressure phase (B1) to hexagonal normal pressure phase (B4) is shown to be rather slow.
Article. Prosanov I. Yu, Babin P. A. The temperature effect on the formation of direct blackening in a zinc oxide-polyvinyl alcohol composition sensitized with lead acetate // Zhurnal Nauchnoi I Prikladnoi Fotografii. Izdatel&apos;stva Nauka. Russian Federation. - P.44-46. - ISSN 08696144.
Article. Prosanov I. Yu, Babin P. A. Photographic properties of sensitized zinc oxide-polyvinyl alcohol compositions // Zhurnal Nauchnoi I Prikladnoi Fotografii. Izdatel&apos;stva Nauka. Russian Federation. - P.64-65. - ISSN 08696144.
Article. Prosanov I. Yu, Babin P. A. On photoconductivity of the zinc oxide-polyvinyl alcohol layers // Zhurnal Nauchnoi I Prikladnoi Fotografii. Izdatel&apos;stva Nauka. Russian Federation. - P.39-43. - ISSN 08696144.
Article. Prosanov I. Yu, Brui V. N., Babin P. A. X-ray phase analysis of photosensitive compositions PVS - ZnO/TiO2-Pb(CH3COO)2 // Zhurnal Nauchnoi I Prikladnoi Fotografii. Izdatel&apos;stva Nauka. Russian Federation. - P.69. - ISSN 08696144.
Article. Prosanov I. Yu, Babin P. A. Reciprocity failure and spectral sensitivity of a polyvinyl alcohol - zinc oxide - lead acetate composition in the direct blackening process // Zhurnal Nauchnoi I Prikladnoi Fotografii. Izdatel&apos;stva Nauka. Russian Federation. - P.64. - ISSN 08696144.
Article. Prosanov I. Yu, Babin P. A. Aging of a PVA-ZnO-Pb(CH3COO)2 composition and regression of an image // Zhurnal Nauchnoi I Prikladnoi Fotografii. Izdatel&apos;stva Nauka. Russian Federation. - P.62. - ISSN 08696144.
Article. Prosanov I. Yu, Babin P. A., Vorontsova A. I., Senin P. V. Photoluminescence and photographic characteristics of PVA-ZnO compositions // Zhurnal Nauchnoi I Prikladnoi Fotografii. Izdatel&apos;stva Nauka. Russian Federation. - P.66. - ISSN 08696144.
Article. Prosanov I. Yu, Zemlyanukhin V. N. Microscopic investigation on the PVS-ZnO-Pb(CH3COO)2 photosensitive compositions // Zhurnal Nauchnoi I Prikladnoi Fotografii. Izdatel&apos;stva Nauka. Russian Federation. - P.1-5. - ISSN 08696144.
Article. Prosanov I. Yu Microscopic investigation of ZnO(TiO2)-PVA: Pb(CH3COO)2 structures // Zhurnal Nauchnoi I Prikladnoi Fotografii. Izdatel&apos;stva Nauka. Russian Federation. - P.52-58. - ISSN 08696144.
Article. Prosanov I. Y. Effect of evacuation of the photochemical and spectral behavior of pva - zno comnosites // Zhurnal Nauchnoi I Prikladnoi Fotografii. Izdatel&apos;stva Nauka. Russian Federation. - P.70-71. - ISSN 08696144.
Article. Prosanov I. Y. Spectral sensitivity of zno-pva: pb(ch3coo)2 composites and their sensi-tization with dyes // Zhurnal Nauchnoi I Prikladnoi Fotografii. Izdatel&apos;stva Nauka. Russian Federation. - P.72-73. - ISSN 08696144.
Article. Prosanov I. Yu Reflectance spectra of photosensitive PVA-ZnO/TiO2-Pb(CH3COO)2 structures // Zhurnal Nauchnoi I Prikladnoi Fotografii. Izdatel&apos;stva Nauka. Russian Federation. - P.51-55. - ISSN 08696144.
Article. Prosanov I. Yu Investigation of the recombination processes in zinc oxide with stationary photoexcitation // Russian Physics Journal. Consultants Bureau. United States. - P.1220-1224. - ISSN 10648887. A model of recombination processes in zinc oxide powders with stationary photoexcitation of low intensity is suggested. According to this model, recombination proceeds through a system of local levels lying in the forbidden band below the Fermi level for a non-illuminated sample. The concentration of nonequilibrium electrons in the conduction band increases as the square root of the exciting radiation intensity. The concentration of holes in the valence band is proportional to the exciting radiation intensity. Based on this model, we successfully explained the lux-ampere characteristic of photoconductivity, lux-lux characteristic of luminescence, and some photocatalytic properties of zinc oxide. ©2002 Plenum Publishing Corporation.
ConferencePaper. Shtarev Dmitry S., Makarevich Konstantin S., Brui Vladimir N., Prosanov Igor Yu Photographic materials with direct blackening based on polymer- semiconductor compositions // Photographic properties of polyvinyl alcohol (PVA)-ZnO/TiO2 compositions sensitized by BiCl3 were investigated in a process with direct blackening. These properties in general are similar to those of earlier investigated compositions sensitized by lead acetate (PbAc). Direct blackening in system with BiCl3 is more resistant to moisture.
Article. Stukalova A. S., Prosanov I. Yu Thermally stimulated transformation of the structure of cobalt complexes in polyvinyl alcohol-cobalt(II) chloride systems // Journal of Applied Spectroscopy (English Translation of Zhurnal Prikladnoi Spektroskopii). Kluwer Academic Publishers. Netherlands. - P.921-925. - ISSN 00219037. - EISSN 15738647. We present the kinetic and temperature dependences of the optical absorption of thermochromic films of polyvinyl alcohol with added CoCl 2. Based on the data obtained, we have analyzed the possibility that tetrahedral cobalt complexes are formed from octahedral complexes. © 2007 Springer Science+Business Media, Inc.
Article. Prosanov I. Yu, Matvienko A. A. Study of PVA thermal destruction by means of IR and Raman spectroscopy // Physics of the Solid State. Russian Academy of Sciences. Russian Federation. - P.2203-2206. - ISSN 10637834. - EISSN 10906460. Raman and IR spectroscopy were used to examine polyvinyl alcohol (PVA) thermally treated in air or vacuum. It was found that after several hours of treatment in air at 470 K bands in Raman spectrum disappear. After vacuum treatment some bands disappear and other become stronger, and slightly change their positions. Such a phenomenon is attributed to the increase of molecular polarizability along polymer chain caused by conjugation. © 2010 Pleiades Publishing, Ltd.
Article. Prosanov I. Yu Raman Spectroscopy of PVA with metal compounds thermal decomposition // Physics of the Solid State. Russian Academy of Sciences. Russian Federation. - P.883-886. - ISSN 10637834. - EISSN 10906460. The products of polyvinyl alcohol (PVA) films with metal compounds pyrolysis were investigated with Raman spectroscopy. The results of heating in vacuum are conjugated bonds, metallization and other consequences. There is a great difference in physicochemical properties and Raman spectra of products for PVA with alkaline metal additives on the one hand and PVA with noble metal additives on the other hand. © 2011 Pleiades Publishing, Ltd.
Article. Prosanov I. Yu, Matvienko A. A., Bokhonov B. B. Influence of urea on polyvinyl alcohol molecular superstructure formation // Physics of the Solid State. Russian Academy of Sciences. Russian Federation. - P.1302-1306. - ISSN 10637834. - EISSN 10906460. Whiskers up to 1 cm in length were grown in polyvinyl alcohol (PVA) and urea solution. Raman and IR spectra discover an interaction between PVA and urea molecules. Optical and electronic microscopy data show that urea influences on PVA molecular superstructure formation. PVA whiskers prepared in urea solution can be used for organic semiconductors production which properties are determined by arrangement of polymer macromolecules. © 2011 Pleiades Publishing, Ltd.
Article. Prosanov I. Yu, Uvarov N. F. Electrical properties of dehydrated polyvinyl alcohol // Physics of the Solid State. Russian Academy of Sciences. Russian Federation. - P.421-424. - ISSN 10637834. - EISSN 10906460. Electrical properties of polyacetylene produced by polyvinyl alcohol dehydration were studied at direct and alternative current measurements. These properties exhibit some a peculiarity at 325 K. It is attributed to two phase coexistence. One of them has a hopping conduction and another one goes from a high-conducting to low-conducting band-type state at 325 K. © 2012 Pleiades Publishing, Ltd.
Article. Prosanov I. Yu, Bulina N. V., Chesalov Yu A. Hybrid material polyvinyl alcohol-copper oxide and its electrical properties // Physics of the Solid State. Russian Academy of Sciences. Russian Federation. - P.1699-1703. - ISSN 10637834. - EISSN 10906460. The hybrid material polyvinyl alcohol-copper oxide was produced by the thermal decomposition of polyvinyl alcohol-copper hydroxide complex compound. It was analyzed by means of XRD, UV-VIS, IR, and Raman spectroscopy. It was concluded that the most part of copper oxide has an amorphous structure and consists of -(Cu-O) n- chains. The electrical properties of this material were investigated at direct and alternating current in 80-375 K temperature range. © 2012 Pleiades Publishing, Ltd.
Article. Prosanov I. Yu Complex compound polyvinyl alcohol-titanic acid/titanium dioxide // Physics of the Solid State. Russian Academy of Sciences. Russian Federation. - P.450-453. - ISSN 10637834. - EISSN 10906460. A complex compound polyvinyl alcohol-titanic acid has been produced and investigated by means of IR and Raman spectroscopy, X-ray diffraction, and synchronous thermal analysis. It is claimed that it represents an interpolymeric complex of polyvinyl alcohol and hydrated titanium oxide. © 2013 Pleiades Publishing, Ltd.
Article. Prosanov I. Yu, Chesalov Yu A., Gerasimov K. B., Bulina N. V. Hybrid material polyvinyl alcohol-stannic acid/stannic oxide // Physics of the Solid State. Russian Academy of Sciences. Russian Federation. - P.1519-1524. - ISSN 10637834. - EISSN 10906460. Hybrid materials polyvinyl alcohol (PVA)-stannic acid and PVA-SnO2 were produced in the form of transparent films. Their investigations by means of optical spectroscopy, X-ray analysis, thermo-gravimetry, and mass-spectrometry were carried out as well as electrical measurements. The model is discussed where the polymeric chains of inorganic constituent are linked by coordinative bonds with carbon polymeric chains. Photoconductivity of PVA-SnO2 was discovered. © 2013 Pleiades Publishing, Ltd.
Article. Prosanov I. Yu, Bulina N. V., Gerasimov K. B. Complexes of polyvinyl alcohol with insoluble inorganic compounds // Physics of the Solid State. Russian Academy of Sciences. Russian Federation. - P.2132-2135. - ISSN 10637834. - EISSN 10906460. Hybrid materials of polyvinyl alcohol-hydroxides/oxides of Be, Mg, Zn, Cd, B, Al, Cr, and Fe have been obtained. The studies have been carried out by the methods of optical spectroscopy, X-ray diffraction, and synchronous thermal analysis. Interpretation of experimental data is presented, presuming that, in systems with zinc, boron, aluminum, chromium, and iron hydroxides/oxides, interpolymeric complexes of polyvinyl alcohol with corresponding polymeric inorganic compounds are formed. They belong to a new class of materials with unusual structure containing chains of inorganic polymers isolated in the organic matrix. © 2013 Pleiades Publishing, Ltd.
Article. Bulina Natalya V., Chaikina Marina V., Andreev Andrey S., Lapina Olga B., Ishchenko Arcady V., Prosanov Igor Yu, Gerasimov Konstantin B., Solovyov Leonid A. Mechanochemical synthesis of SiO4 4--substituted hydroxyapatite, part II - Reaction mechanism, structure, and substitution limit // European Journal of Inorganic Chemistry. John Wiley & Sons Ltd.. United Kingdom. - P.4810-4825. - ISSN 14341948. Copyright © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. For the first time, silicate-substituted hydroxyapatites have been prepared from mixtures containing different amounts of silicon (0.2-2 mol per mol of apatite unit cell) by dry mechanochemical synthesis at room temperature in a planetary ball mill. The XRD, FTIR, TEM, and NMR spectroscopic data show that the product of the mechanochemical synthesis is a single-phase nanocrystalline apatite containing different amounts of carbonate and silicate ions and adsorbed water. In the annealed samples, three silicon concentration subranges can be distinguished, each of which is characterized by specific evolution of the lattice parameters. The formation mechanism of the silicate-substituted hydroxyapatite obtainable by this method is discussed. The studies indicate that the silicon substitution limit in the silicate-substituted lattice achievable by the dry mechanochemical synthesis followed by heat treatment is 1.2 mol per mol of apatite unit cell.
Article. Chaikina Marina V., Bulina Natalya V., Ishchenko Arcady V., Prosanov Igor Yu Mechanochemical synthesis of SiO4 4--substituted hydroxyapatite, part i - Kinetics of interaction between the components // European Journal of Inorganic Chemistry. John Wiley & Sons Ltd.. United Kingdom. - P.4803-4809. - ISSN 14341948. Copyright © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. The kinetics of the room-temperature dry mechanochemical synthesis of hydroxyapatite modified by SiO4 4- ions has been studied for the first time. The changes in the composition of the reaction mixture as a function of the time of mechanical activation in a planetary ball mill as well as the composition of the final product have been investigated by X-ray phase analysis and IR spectroscopy. Certain stages of the interaction of the reactants have been analyzed with the help of high-resolution electron microscopy. The mechanochemical synthesis conducted in air is accompanied by the incorporation of carbonate ions into the apatite lattice, which results in the formation of B-type carbonated hydroxyapatite. The apatite structure starts to form after 5 min of mechanochemical activation of the reaction mixture, and the final single-phase nanocrystalline powder of silicate-substituted carbonated hydroxyapatite is formed after 30 min of activation. The kinetics of the dry mechanochemical synthesis of hydroxyapatite modified by SiO4 4- ions is studied. From the first seconds of mechanical activation, the initial Ca(H2PO4)2·H2O partially reacts with CaO to form CaHPO4 (interior of the nanoparticles); the nanoparticle shell is Ca(H2PO4)2·H2O, and the material located near the nanoparticles is a mechanical mixture of the initial components.
Article. Prosanov I. Yu, Bulina N. V. Polymeric sulfides CdS, CuS, and NiS in polyvinyl alcohol matrix // Physics of the Solid State. Russian Academy of Sciences. Russian Federation. - P.1270-1272. - ISSN 10637834. - EISSN 10906460. Cadmium, copper, and nickel sulfides have been synthesized in a polyvinyl alcohol matrix. The specimens have been investigated by means of vibration spectroscopy and X-ray diffraction analysis. The obtained data have confirmed the formation of cadmium sulfide with a polymeric chain structure in polyvinyl alcohol. The possibility of producing similar materials based on copper and nickel sulfides has been discussed. © 2014 Pleiades Publishing, Ltd.
Article. Chaikina M. V., Bulina N. V., Ishchenko A. V., Prosanov I. Yu Mechanochemical Synthesis of Hydroxyapatite and Its Modifications: Composition, Structure, and Properties // Russian Physics Journal. Consultants Bureau. United States. - P.1176-1182. - ISSN 10648887. The mechanochemical method is used to synthesize samples of hydroxyapatite (HA) with substitution of the phosphate ion by silicate and zirconate ions, and substitution of calcium ions by copper ions. In the process of mechanochemical synthesis, carbonate ions and water molecules are incorporated into the structure of HA due to interaction of components of the reaction mixture with air. Intrusion of carbonate into the structure of HA is a competing process with modification of apatite by silicate and zirconate anions; therefore, the composition of the product during synthesis differs from the prescribed one. After annealing of the samples, the composition of the anion-modified HA can be described by the formula Sa10(RO4)6-kh(AO4)kh(ON)2-kh, where (AO4)4- is the modifying anion. Substitution of calcium by copper ions localized at the Sa1 position has been detected. Silver ions are not incorporated into the structure of HA, but are distributed in the apatite matrix in the form of nanocrystals of metallic silver. © 2014 Springer Science+Business Media New York.
Article. Bulina Natalya V., Chaikina Marina V., Andreev Andrey S., Lapina Olga B., Ishchenko Arcady V., Prosanov Igor Yu, Gerasimov Konstantin B., Solovyov Leonid A. Mechanochemical synthesis of SiO4 4--substituted hydroxyapatite, part II - Reaction mechanism, structure, and substitution limit // European Journal of Inorganic Chemistry. John Wiley & Sons Ltd.. United Kingdom. - P.4810-4825. - ISSN 14341948. Copyright © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. For the first time, silicate-substituted hydroxyapatites have been prepared from mixtures containing different amounts of silicon (0.2-2 mol per mol of apatite unit cell) by dry mechanochemical synthesis at room temperature in a planetary ball mill. The XRD, FTIR, TEM, and NMR spectroscopic data show that the product of the mechanochemical synthesis is a single-phase nanocrystalline apatite containing different amounts of carbonate and silicate ions and adsorbed water. In the annealed samples, three silicon concentration subranges can be distinguished, each of which is characterized by specific evolution of the lattice parameters. The formation mechanism of the silicate-substituted hydroxyapatite obtainable by this method is discussed. The studies indicate that the silicon substitution limit in the silicate-substituted lattice achievable by the dry mechanochemical synthesis followed by heat treatment is 1.2 mol per mol of apatite unit cell. Silicate-substituted hydroxyapatite powders containing different amounts of silicon have been synthesized by the mechanochemical method. Several apatite crystal structures that differ by the position of the hydroxy groups have been identified.
ArticleInPress. Bulina Natalya V., Chaikina Marina V., Prosanov Igor Yu, Gerasimov Konstantin B., Ishchenko Arkady V., Dudina Dina V. Mechanochemical Synthesis of SiO4 4--Substituted Hydroxyapatite, Part III - Thermal Stability // European Journal of Inorganic Chemistry. John Wiley & Sons Ltd.. United Kingdom. - ISSN 14341948. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Thermal stability of mechanochemically synthesized silicon-substituted hydroxyapatite containing 0.6, 0.8, 1.0, and 1.2 mol of silicon per mol of apatite unit cell has been studied for the first time. The powders of the silicon-substituted hydroxyapatite were annealed within the temperature range 700-1300 °C. It was found that the substituted hydroxyapatites remain single-phase after annealing at temperatures of up to 900 °C for all concentrations of added silicon. The second phase - silicocarnotite Ca5(PO4)2SiO4 - appears in the materials containing 1.0 and 1.2 mol of added silicon that have been annealed at 1000 °C. In the powder containing 0.8 mol of added silicon, silicocarnotite was detected after annealing at 1100 °C. The formation of silicocarnotite is likely to occur in the nanoparticles of the silicon-substituted hydroxyapatite with silicon concentrations much higher than the average value. It was found that the silicon-substituted hydroxyapatite containing 0.6 mol of silicon per mol of apatite unit cell has the highest thermal stability and remains single-phase up to a temperature of 1200 °C, similarly to pure hydroxyapatite obtained by the same synthesis method.
ConferencePaper. Chaikina M. V., Komarova E. G., Sharkeev Yu P., Bulina N. V., Prosanov I. Yu Lanthanum-silicon-substituted hydroxyapatite: Mechanochemical synthesis and prospects for medical applications // AIP Conference Proceedings. - P.. - ISSN 0094243X. © 2016 Author(s).The paper presents the results of mechanochemical synthesis of hydroxyapatite (HAP) with simultaneous substitutions of lanthanum (La3+) for calcium ions and silicate ((SiO4)4--group) for the phosphate group with the substituent concentrations in the range 0.2-2.0 mol per HAP mol. The use of Si-substituted HAP as a coating material promotes accelerated osteosynthesis and osteointegration of implants into the bone tissue. The replacement of calcium ions by La3+ in the HAP structure plays an antimicrobial role preventing inflammatory processes. Annealing-induced variations in the lattice parameters of synthesized samples indicate the substituent incorporation into the HAP structure. It is known that complex compounds with lanthanides are used for cancer chemotherapy. In particular, La plays a key role in the course of treatment of injured defects of bone tissue. In addition, La-substituted HAP can be used for filling bone defects and coating implants in postoperational areas affected by bone cancer.
ArticleInPress. Andreev A. S., Bulina N. V., Chaikina M. V., Prosanov I. Yu, Terskikh V. V., Lapina O. B. Solid-state NMR and computational insights into the crystal structure of silicocarnotite-based bioceramic materials synthesized mechanochemically // Solid State Nuclear Magnetic Resonance. Academic Press. United States. - P.. - ISSN 09262040. - EISSN 15273326.
Article. Zima T. M., Prosanov I. Yu Surface modification of elongated one-dimensional titanium dioxide structures with ferromagnetic nanoparticles // Inorganic Materials. Maik Nauka/Interperiodica Publishing. Russian Federation. - P.1160-1165. - ISSN 00201685. - EISSN 16083172. © 2016, Pleiades Publishing, Ltd.Nanostructured TiO2 in the form of elongated one-dimensional structures having a highly ordered layered morphology, with cobalt-containing agglomerates on their surface, has been prepared by hydrothermal treatment of CoTiO3 powder in the presence of chitosan, a bioactive natural polymer. The synthesis products have been characterized by scanning electron microscopy, transmission electron microscopy, IR spectroscopy, X-ray diffraction, elemental analysis, and magnetic measurements. The structures have been shown to be up to several microns in length, and their typical width ranges from 100 to 400 nm. The one-dimensional structures retain high thermal stability at calcination temperatures of up to 800°C. After vacuum heat treatment at 600°C and above, the nanostructured material possesses anomalously high ferromagnetic characteristics.

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