Search Results - "Seminko, V. V."

High antioxidant activity of gadolinium-yttrium orthovanadate nanoparticles in cell-free and biological milieu by Maksimchuk, P O, Hubenko, K O, Seminko, V V, Karbivskii, V L, Tkachenko, A S, Onishchenko, A I, Prokopyuk, V Yu, Yefimova, S L

“…Oxidative stress caused by an overproduction of reactive oxygen species (ROS) is the key factor in developing a variety of pathological conditions. Recently…”
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Formation of luminescent centers in CeO2 nanocrystals by Masalov, A., Viagin, O., Maksimchuk, P., Seminko, V., Bespalova, I., Aslanov, A., Malyukin, Yu, Zorenko, Yu

“…The nature of luminescence centers in CeO2 nanocrystals with varied oxygen stoichiometry has been investigated. It was shown that the luminescence of CeO2 is…”
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Strong segregation of doped ions in Y2SiO5:Pr3+ nanocrystals by Seminko, V.V., Masalov, A.A., Boyko, Yu.I., Malyukin, Yu.V.

“…Strong temperature controlled segregation of doped ions in Y2SiO5:Pr3+ nanocrystals detected by spectroscopic techniques is reported. The elastic interactions…”
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Processes of energy migration in mixed europium-lanthanum magnesium borate nanocrystals by Kononets, N. V., Seminko, V. V., Maksimchuk, P. O., Bespalova, I. I., Masalov, A. A., Malyukin, Yu. V., Grinyov, B. V.

“…Processes of excitation energy migration in europium magnesium borate nanocrystals at different concentrations of neodymium and lanthanum ions were…”
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Quantum splitting in praseodymium-doped lanthanum aluminum dimetaborate crystals at X-ray excitation by Kononets, N. V., Viagin, O. G., Seminko, V. V., Maksimchuk, P. O., Koporulina, E. V., Leonyuk, N. I., Malyukin, Y. V.

“…Mixed lanthanum-praseodymium aluminum dimetaborate and aluminum orthoborate crystals were grown. The processes of excitation energy relaxation for the crystals…”
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Influence of surface segregation on the luminescence properties of doped YVO4 nanocrystals by Seminko, V.V., Masalov, A.A., Boyko, Yu.I., Malyukin, Yu.V.

“…► The segregation of doped ions in doped YVO4 nanocrystals was detected. ► Redistribution of doped ions leads to change of nanocrystals luminescence spectra. ►…”
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OH-Free Catalytic Decomposition of H2O2 by GdVO4:Eu3+ Nanoparticles by Maksimchuk, Pavel O., Hubenko, Kateryna O., Knupfer, Martin, Seminko, Vladyslav V., Klochkov, Vladimir K., Tomchuk, Oleksandr V., Kavok, Nataliya S., Sorokin, Oleksandr V., Demchenko, Lesya D., Yefimova, Svetlana L.

“…H2O2 is known to be one of the initiators provoking biomolecules (lipids and proteins) oxidation and cell mutation and death. In this context, molecules, which…”
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OH-Free Catalytic Decomposition of H 2 O 2 by GdVO 4 :Eu 3+ Nanoparticles by Maksimchuk, Pavel O., Hubenko, Kateryna O., Knupfer, Martin, Seminko, Vladyslav V., Klochkov, Vladimir K., Tomchuk, Oleksandr V., Kavok, Nataliya S., Sorokin, Oleksandr V., Demchenko, Lesya D., Yefimova, Svetlana L.

“…H 2 O 2  is known to be one of the initiators provoking biomolecules (lipids and proteins) oxidation and cell mutation and death. In this context, molecules,…”
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Janus-Faced Redox Activity of LnVO4:Eu3+ (Ln = Gd, Y, and La) Nanoparticles by Yefimova, Svetlana L, Maksimchuk, Pavel O, Seminko, Vladyslav V, Kavok, Nataliya S, Klochkov, Vladimir K, Hubenko, Kateryna A, Sorokin, Alexander V, Kurilchenko, Irina Yu, Malyukin, Yuri V

“…We report Janus-faced redox activity (pro- and anti-oxidant action) of LnVO4:Eu3+ (GdYVO4:Eu3+, GdVO4:Eu3+, and LaVO4:Eu3+) nanoparticles (NPs), which was…”
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Luminescent colloidal ceria nanoparticles doped with RE3+ ions (RE = Eu, Tb) via cation exchange mechanism by Seminko, V., Maksimchuk, P., Klochkov, V., Yefimova, S.

“…High anionic conductivity in cerium oxide bulk materials and nanocrystals makes these materials perspective for development of solid oxide fuel cells. At the…”
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Luminescence mechanism of Sm doped MgAl2O4 nanophosphors: Role of nanoparticle size, samarium content and structural defects by Lamonova, K., Danilenko, I., Volkova, G., Orel, S., Pashkevich, Yu, Prokhorov, A., Viagin, O., Maksimchuk, P., Seminko, V., Malyukin, Yu, Kurnosov, V.

“…We report structural and luminescence properties of the spinel MgAl2O4:Sm3+ nanophosphors (with Sm3+ content of 0.03, 0.1, 0.2, 0.3, 0.5, 1.0, 1.5, and…”
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Effect of TiO2−x nanoparticle defect structure on hydroxyl radical scavenging activity under X-ray irradiation by Seminko, V.V., Bespalova, I.I., Maksimchuk, P.O., Hubenko, K.O., Opolonin, O.D., Yefimova, S.L.

“…Two types of titanium oxide nanoparticles (TiO2−x NPs) with the same size (5.0 ± 0.6 nm), but different Ti3+(Ti2+)/Ti4+ ratios in their crystal lattice were…”
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Luminescent properties of composite scintillators based on PPO and o-POPOP doped SiO2 xerogel matrices by Viagin, O., Masalov, A., Bespalova, I., Zelenskaya, O., Tarasov, V., Seminko, V., Voloshina, L., Zorenko, Yu, Malyukin, Yu

“…New composite scintillation detectors were obtained by incorporation of PPO and o-POPOP organic scintillators into porous sol–gel silica matrices. Composites…”
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Oxidation-reduction processes in CeO2-x nanocrystals under UV irradiation by Klochkov, V.K., Malyukin, Yu.V., Grygorova, G.V., Sedyh, O.O., Kavok, N.S., Seminko, V.V., Semynozhenko, V.P.

“…[Display omitted] •UV irradiation of nanoceria promotes Ce4+→Ce3+ reduction.•UV irradiation of nanoceria leads to sufficient improvement of its antioxidant…”
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ZnSe nanocrystals obtained in pores of SiO2 matrix with temperature stable green luminescence by Masalov, A.A., Seminko, V.V., Kononets, N.V., Maksimchuk, P.O., Bespalova, I.I., Voloshina, L.I., Malyukin, Yu.V.

“…ZnSe nanocrystals have been obtained in the pores of SiO2 matrices by two different methods – chemical vapour deposition (CVD) method and method of…”
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Luminescent properties of composite scintillators based on PPO and o-POPOP doped SiO 2 xerogel matrices by Viagin, O., Masalov, A., Bespalova, I., Zelenskaya, O., Tarasov, V., Seminko, V., Voloshina, L., Zorenko, Yu, Malyukin, Yu

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Temperature-dependent segregation of Pr3+ impurity ions in Y2SiO5:Pr3+ and YPO4:Pr3+ nanocrystals by Znamenskii, N. V., Maksimchuk, P. O., Malyukin, Yu. V., Masalov, A. A., Semin’ko, V. V., Shashkov, A. Yu

“…Stationary and time-resolved spectroscopic methods are used to show that the impurity ions in Y 2 SiO 5 :Pr 3+ and YPO 4 :Pr 3+ nanocrystals are distributed…”
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UV-Light-Activated (Gd,Y)VO4:Eu3+ Nanoparticles for Radiotherapy Enhancement by Maksimchuk, Pavel O., Hubenko, Kateryna O., Seminko, Vladyslav V., Bespalova, Irina I., Opolonin, Oleksandr D., Sorokin, Alexander V., Grygorova, Ganna V., Yefimova, Svetlana L.

“…Cancerous cells could be resistant to radiotherapy (RT) and require enhanced doses of irradiation exceeding the tolerance of patients. Nanoparticles containing…”
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UV-Light-Activated (Gd,Y)VO 4 :Eu 3+ Nanoparticles for Radiotherapy Enhancement by Maksimchuk, Pavel O., Hubenko, Kateryna O., Seminko, Vladyslav V., Bespalova, Irina I., Opolonin, Oleksandr D., Sorokin, Alexander V., Grygorova, Ganna V., Yefimova, Svetlana L.

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Janus-Faced Redox Activity of LnVO 4 :Eu 3+ (Ln = Gd, Y, and La) Nanoparticles by Yefimova, Svetlana L., Maksimchuk, Pavel O., Seminko, Vladyslav V., Kavok, Nataliya S., Klochkov, Vladimir K., Hubenko, Kateryna A., Sorokin, Alexander V., Kurilchenko, Irina Yu, Malyukin, Yuri V.

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