Search Results - "Yefimova, Svetlana L"

Exciton Dynamics and Self-Trapping of Carbocyanine J‑Aggregates in Polymer Films by Sorokin, Alexander V, Ropakova, Irina Yu, Wolter, Steffen, Lange, Regina, Barke, Ingo, Speller, Sylvia, Yefimova, Svetlana L, Malyukin, Yuri V, Lochbrunner, Stefan

“…Spectral properties and morphologies of 1,1′-disulfobutyl-3,3′-diethyl-5,5′,6,6′-tetrachlorobenzimidazolylcarbo-cyanine (TDBC) J-aggregates formed in two…”
Get full text

Evidence of Exciton Self-Trapping in Pseudoisocyanine J‑Aggregates Formed in Layered Polymer Films by Sorokin, Alexander V, Pereverzev, Nikita V, Grankina, Irina I, Yefimova, Svetlana L, Malyukin, Yury V

“…At low temperatures in the luminescence spectrum of pseudoisocyanine (PIC) J-aggregates formed in a layered polymer film an unusual broad red-shifted band…”
Get full text

X-ray Induced Hydroxyl Radical Generation by GdYVO4:Eu3+ Nanoparticles in Aqueous Solution: Main Mechanisms by Maksimchuk, Pavel, Yefimova, Svetlana, Omielaieva, Valeriia, Hubenko, Kateryna, Klochkov, Vladimir, Opolonin, Oleksandr, Malyukin, Yuri

“…We report on strong X-ray-induced hydroxyl radical (. O H ) generation in an aqueous solution containing UV light pre-treated GdYVO4:Eu3+ nanoparticles…”
Get full text

Coherent Mechanism of Exciton Transport in Disordered J-Aggregates by Lebedenko, Alexander N, Grynyov, Roman S, Guralchuk, Gleb Ya, Sorokin, Alexander V, Yefimova, Svetlana L, Malyukin, Yuri V

“…Using a luminescent exciton trap, a mechanism of the exciton migration in disordered J-aggregates of amphiphilic analogue of pseudoisocyanine (amphi-PIC) dye…”
Get full text

Dark Reactive Oxygen Species Generation in ReVO4:Eu3+ (Re = Gd, Y) Nanoparticles in Aqueous Solutions by Maksimchuk, Pavel O, Yefimova, Svetlana L, Hubenko, Kateryna O, Omielaieva, Valeriia V, Kavok, Nataliya S, Klochkov, Vladimir K, Sorokin, Olexander V, Malyukin, Yuri V

“…Nanomaterials, which promote the generation of reactive oxygen species (ROS) and precipitate the onset of oxidative stress responsible for the development of a…”
Get full text

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…”
Get full text

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,…”
Get full text

Impact of Eu3+ Ions on Pro-oxidant Activity of ReVO4:Eu3+ Nanocrystals by Maksimchuk, Pavel O, Hubenko, Kateryna O, Grygorova, Ganna V, Klochkov, Vladimir K, Sorokin, Alexander V, Yefimova, Svetlana L

“…In the present paper, we analyze the impact of doping of GdYVO4 and LaVO4 nanoparticles (NPs) with Eu3+ ions on their redox properties, in particular, dark…”
Get full text

Molecular Arrangement in Cyanine Dye J‑Aggregates Formed on CeO2 Nanoparticles by Yefimova, Svetlana L, Grygorova, Ganna V, Klochkov, Vladimir K, Borovoy, Igor A, Sorokin, Alexander V, Malyukin, Yuri V

“…The aggregation behavior of 1-methyl-1′-octadecyl-2,2′-cyanine perchlorate (amphi-PIC) and 3,3′-dimethyl-9-(2-thienyl)-thiacarbocyanine iodide (L-21) dyes in…”
Get full text

Geroprotective effects of GdVO4:Eu3 + nanoparticles, metformin and calorie restriction in male rats with accelerated aging induced by overnutrition in early postnatal ontogenesis by Nikitchenko, Yuri V., Klochkov, Vladimir K., Kavok, Nataliya S., Karpenko, Nina A., Yefimova, Svetlana L., Semynozhenko, Vladimir P., Nikitchenko, Irina V., Bozhkov, Anatoly I.

“…GdVO 4 :Eu 3+ nanoparticles (OVNPs) have previously been shown to exhibit anti-aging effects in old rats.The accelerated aging model (overnutrition in early…”
Get full text

Interaction between molecular aggregates placed into thin layered films by Pisklova, Polina V., Ropakova, Iryna Yu, Bespalova, Iryna I., Yefimova, Svetlana L., Sorokin, Alexander V.

“…Interaction of J-aggregates of two carbocyanine dyes, TDBC and TCC, with similar structures has been studied in aqueous solutions and thin polymer films. It…”
Get full text

Anti-aging Effects of Antioxidant Rare-Earth Orthovanadate Nanoparticles in Wistar Rats by Nikitchenko, Yuri V., Klochkov, Vladimir K., Kavok, Nataliya S., Averchenko, Kateryna A., Karpenko, Nina A., Nikitchenko, Irina V., Yefimova, Svetlana L., Bozhkov, Anatoly I.

“…Biomedical application of rare-earth-based nanoparticles attracts much attention due to their unique optical and redox properties and quite low toxicity…”
Get full text

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…”
Get full text

Metal-Enhanced Fluorescence of Pseudoisocyanine J‑Aggregates Formed in Layer-by-Layer Assembled Films by Sorokin, Alexander V, Zabolotskii, Alexander A, Pereverzev, Nikita V, Bespalova, Irina I, Yefimova, Svetlana L, Malyukin, Yury V, Plekhanov, Alexander I

“…A formation of pseudoisocyanine (PIC) dye J-aggregates in the polyelectrolyte film by the layer-by-layer (LbL) assembly method has been studied. It has been…”
Get full text

CeO2 nanoparticles improve prooxidant/antioxidant balance, life quality and survival of old male rats by Nikitchenko, Yuri V., Klochkov, Vladimir K., Kavok, Nataliya S., Karpenko, Nina A., Yefimova, Svetlana L., Semynozhenko, Vladimir P., Nikitchenko, Irina V., Bozhkov, Anatoly I.

“…Due to its unique redox chemistry, nanoceria is considered as potent free radical scavenger and antioxidant. However, their protective capacity in aging…”
Get full text

Plasmon Controlled Exciton Fluorescence of Molecular Aggregates by Sorokin, Alexander V, Zabolotskii, Alexander A, Pereverzev, Nikita V, Yefimova, Svetlana L, Malyukin, Yury V, Plekhanov, Alexander I

“…In the present work controlled plasmon enhanced fluorescence of thiacyanine dye J-aggregates in water solution has been demonstrated. To control a distance…”
Get full text

Plasmon-Induced Suppression of Exciton Self-Trapping in Polymer-Bound Pseudoisocyanine J‑Aggregates by Sorokin, Alexander V, Grankina, Irina I, Bespalova, Irina I, Aslanov, Andrey V, Yefimova, Svetlana L, Malyukin, Yuri V

“…Features of plasmon-enhanced fluorescence in pseudoisocyanine (PIC) J-aggregates formed in polyelectrolyte films at liquid nitrogen temperature have been…”
Get full text

Age-Related Effects of Orthovanadate Nanoparticles Involve Activation of GSH-Dependent Antioxidant System in Liver Mitochondria by Nikitchenko, Yuri V., Klochkov, Vladimir K., Kavok, Nataliya S., Karpenko, Nina A., Yefimova, Svetlana L., Nikitchenko, Irina V., Bozhkov, Anatoly I.

“…Vanadium is an important ultra-trace element nowadays attracting attention with particular emphasis on medical application. But the therapeutic application of…”
Get full text

Spectral features of the dispersion of carbocyanine dye J-aggregates in a liquid crystal matrix by Grankina, Irina I., Samoilov, Oleksandr M., Kasian, Natalia A., Ropakova, Iryna Yu, Hrankina, Svitlana S., Yefimova, Svetlana L., Lisetski, Longin N., Sorokin, Oleksandr V.

“…Formation of J-aggregates of the anionic cyanine dye TDBC in a nematic liquid crystal (LC) matrix is reported, with analysis of optical-fluorescent and…”
Get full text

Comparative Studies of Orthovanadate Nanoparticles and Metformin on Life Quality and Survival of Senile Wistar Rats by Nikitchenko, Yuri V., Klochkov, Vladimir K., Kavok, Nataliya S., Karpenko, Nina A., Nikitchenko, Irina V., Yefimova, Svetlana L., Bozhkov, Anatoly I.

“…Effect of prolong use of orthovanadate nanoparticles (GdVO 4 /Eu 3+ NPs (8 × 25 nm)) on life quality and survival of male Wistar rats on the late stage of…”
Get full text