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  1. No Access

    Article

    Fractal Nanocatalysis and Related Phenomena

    The concept of nanofractality is developed. Models describing the appearance of nanofractality in objects of different dimensions are presented. For two-dimensionality, analysis is based on the modification of...

    N. N. Nikiforova, Kh. B. Ashurov… in Journal of Surface Investigation: X-ray, S… (2018)

  2. No Access

    Article

    Structural Properties of Cd x Hg1–xTe Solid-Solution Nanoparticles

    It is shown that Cd x Hg1–xTe solid-solution nanoparticles can be produced by ball milling, but their presence is masked by larger particles. The methods of laser-correlation spe...

    V. G. Sredin, V. N. Nikiforov, V. I. Zagarskikh in Technical Physics Letters (2017)

  3. No Access

    Article

    Synergetics of surface sputtering by polyatomic ions

    The phenomenon of the sputtering of solids under bombardment with molecular ions is considered within the framework of synergetics. The complete sputtering process is divided into three stages with the help of...

    B. L. Oksengendler, S. E. Maksimov… in Journal of Surface Investigation: X-ray, S… (2017)

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    Article

    Tamm states of fractal surfaces

    The theory of modification of surface Tamm states on fractal surfaces is developed, and manifestations of such phenomena are analyzed. The obtained results suggest that the fractality of free and inner surface...

    B. L. Oksengendler, V. N. Nikiforov, S. E. Maksimov in Doklady Physics (2017)

  5. No Access

    Article

    Size and surface effects on the magnetism of magnetite and maghemite nanoparticles

    The size effects of magnetite and maghemite nanoparticles on their magnetic properties (magnetic moment, Curie temperature, blocking temperature, etc.) have been investigated. Magnetic separation and centrifug...

    V. N. Nikiforov, A. N. Ignatenko… in Journal of Experimental and Theoretical Ph… (2017)

  6. No Access

    Article

    Silicon Nanoparticles as Amplifiers of the Ultrasonic Effect in Sonodynamic Therapy

    The possibility of using mesoporous silicon nanoparticles as amplifiers (sensitizers) of therapeutic ultrasonic exposure were studied experimentally in vitro and in vivo. The combination of nanoparticles and ultr...

    L. A. Osminkina, A. A. Kudryavtsev… in Bulletin of Experimental Biology and Medic… (2016)

  7. No Access

    Article

    Peculiarities of metal oxide nanoparticles obtained in acoustoplasma discharge

    Nanoparticles of tungsten, copper, iron, and zinc oxides were synthesized in acoustoplasma discharge. Their size distribution was studied by electron microscopy and laser correlation spectroscopy. Ultrasound w...

    N. A. Bulychev, M. A. Kazaryan, V. N. Nikiforov… in Technical Physics Letters (2016)

  8. No Access

    Article

    Application of Laser Correlation Spectroscopy for Measuring Virus Size

    Dynamic light scattering method or laser correlation spectroscopy was applied to evaluation of the size of viruses. We measured correlation functions of the light scattered by human immunodeficiency viruses (H...

    V. N. Nikiforov, S. E. Vinogradov… in Bulletin of Experimental Biology and Medic… (2016)

  9. No Access

    Article

    On a possible mechanism of the effect of microwave radiation on biological macromolecules

    A model that describes the dissociation of a hydrogen bond in water clusters when irradiated by an electromagnetic field in the microwave range is proposed. The model is also applicable for the case of the rup...

    V. N. Nikiforov, A. V. Ivanov, E. K. Ivanova, K. P. Tamarov… in Biophysics (2016)

  10. No Access

    Article

    The role of the fano resonance in multiple exciton generation in quantum dots

    The phenomenon of interference between two pathways of electron transfer from the valence to the conduction band at a quantum dot is considered. The first way is the conventional “valence band–conduction band”...

    B. L. Oksengendler, M. B. Marasulov, V. N. Nikiforov in Technical Physics Letters (2016)

  11. No Access

    Article

    Elastic properties of HTSC ceramics

    Elastic properties of ceramics of various high-temperature superconductor (HTSC) types are considered based on experimental data. The effect of porosity of HTSC ceramics is analyzed.

    V. N. Nikiforov, N. A. Bulychev… in Bulletin of the Lebedev Physics Institute (2016)

  12. No Access

    Article

    Magnetic properties of maghemite nanoparticles

    Magnetic particles of maghemite (spinel γ-Fe2O3) are synthesized by means of aerosol pyrolysis, making it possible to produce chemically uniform highly-dispersed single-phase materials. The magnetic properties of...

    V. N. Nikiforov, A. E. Goldt, E. A. Gudilin… in Bulletin of the Russian Academy of Science… (2014)

  13. No Access

    Article

    Role of electron confinement in the formation of Tamm surface levels in nanoparticles

    We study the effect of electron confinement in a nanoparticle on the parameters of Tamm’s levels. It is shown using the combination of the Tamm model and the Kronig-Penney model that an increase in the gap wid...

    B. L. Oksengendler, B. Askarov, V. N. Nikiforov in Technical Physics (2014)

  14. No Access

    Article

    Magnetism of magnetite nanoparticles: Effects of finite size and coating

    How the size of magnetite nanopaticles affects different magnetic properties of the material (magnetic moment, Curie temperature, blocking temperature, and so on) is examined experimentally. Both native partic...

    V. N. Nikiforov, A. N. Ignatenko… in Bulletin of the Russian Academy of Science… (2014)

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    Article

    Porous silicon nanoparticles as scavengers of hazardous viruses

    We report that silicon nanoparticles (SiNPs) with typical sizes from 5 to 50 nm prepared by grinding of porous silicon can act as efficient scavengers of human immunodeficiency virus (HIV) and respiratory sync...

    L. A. Osminkina, V. Yu Timoshenko, I. P. Shilovsky… in Journal of Nanoparticle Research (2014)

  16. No Access

    Article

    Search for an NMR signal from spin isomers of water in H2O/D2O mixture

    With the aim to detect the existence of spin-isomeric molecules in water by NMR tomography, comparative measurement of NMR signal integral amplitude was performed with pure water and 50/50 water/heavy water mi...

    A. A. Volkov, N. V. Anisimov, V. N. Nikiforov, Yu. A. Pirogov… in Biophysics (2014)

  17. No Access

    Article

    Thermoelectric properties of rare-earth alloys

    The electrical resistivity, thermal conductivity, and thermopower have been measured for a large number of newly synthesized metallic compounds and alloys of simple, transition, and rare-earth elements. The ma...

    V. N. Nikiforov, A. V. Morozkin, V. Yu. Irkhin in The Physics of Metals and Metallography (2013)

  18. No Access

    Article

    Ferromagnetic Kondo lattice CeRuSi2 with non-Fermi-liquid behavior

    The structure, electronic, thermodynamic, and magnetic properties of the CeRuSi2 Kondo lattice with ferromagnetic ordering characterized by a small moment of the ground state are investigated. Anomalies in the te...

    V. N. Nikiforov, M. Baran, V. Yu. Irkhin in Journal of Experimental and Theoretical Physics (2013)

  19. No Access

    Article

    Problem on the Effective Electron Mass in Nanoclusters

    V. N. Nikiforov, B. L. Oksengendler, N. N. Turaeva… in Russian Physics Journal (2013)

  20. No Access

    Article

    Elasticity moduli of Cd x Hg1–x Te solid solutions

    Results of investigations into the temperature dependences (4.2–300 K) of the low-frequency ultrasound velocity in Cd x Hg1–x Te single crystals are prese...

    V. N. Nikiforov, V. G. Sredin, K. R. Kurbanov in Russian Physics Journal (2011)

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