RU – Page 5 – TechConnect Briefs

Assessment of comparative toxicity of nano- and microparticles of magnetite

Katsnelson B.A., Privalova L.I., Degtyareva T.D., Kuzmin S.V., Sutunkova M.P., Minigalieva I.A., Kireyeva E.P., Khodos M.Y., Shur V.Y., Nikolaeva E.V., Valamina I.E., Tulakina L.G., Pichugova S.V., Beykin J.B., Federal State Institution of Sciences Medical Research, RU

Assessment of toxicity of 10 nm, 50 nm and 1 um Fe3O4 particles based on shift in the cell population of the broncho-alveolar lavage fluid after their intratracheal instillation into lungs of rats and on [...]

Stable Magnetic Isotopes and Reliability of Biomolecular Nanoreactors

Koltover V.K., Institute of Problems of Chemical Physics, Russian Academy of Sciences, RU

The trend of nanoscaling brings engineering down to the dimensions of molecular structures but in so doing poses also the problem of how to create the reliable system from the molecular components which experience permanent [...]

Phagocytizing cells recruitment and activity in response to pulmonary deposition of magnetite particles of different size in nanometer and micrometer ranges

Privalova L.I., Katsnelson B.A., Kuzmin S.V., Degtyareva T.D., Sutunkova M.P., Yeremenko O.S., Khodos M.Y., Kositsina A.N., Malakhova N.A., Glazyrina J.A., Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, RU

It is often maintained that nanoparticles are poorly recognized by host’s defence mechanisms and, specifically, cause weak attraction of phagocytes and are therefore removed from lungs ineffectively. However, intratracheal instillation of water-suspended magnetite nanoparticles caused [...]

Reliability in Nano-Engineering: Nuclear Spin of Magnesium-25 as Reliability Factor in Molecular and Biomolecular Nanoreactors

Koltover V.K., Institute of Problems of Chemical Physics, Russian Academy of Sciences, RU

The trend of nanoscaling brings engineering down to the dimensions of molecular structures. However, it poses the problem of how to create a reliable system from molecular components which experience permanent thermal and environmental fluctuations. [...]

Visualization of Thyroid Cancer Signs by Atomic Force Microscopy

Reshetov I.V., Chissov V.I., Sukharev S.S., Slavnova E.N., Volchenco N.N., Bykov V.A., P.A.Hertzen Moscow Research Oncological Institute, RU

Aim: Search for the AFM signs of the thyroid cancer. Instruments and Materials: AFM-system NTEGRA Prima, NT-MDT Co., Zelenograd, Russia. Cytological specimens prepared identically to those used in traditional cytological studies. Characteristics measured: the heights [...]

Simulation of Self-Assemblig Monolayers of Complicated Organic Molecules at the Interface

Fefelov V.F., Gorbunov V.A., Myshlyavtsev A.V., Myshlyavtseva M.D., Myshlyavtseva M.D., Omsk State Technical University, RU

In present paper we construct and study the simple model of self-assembled monolayer (SAM) with several different orientations of complicated organic molecules with respect to interface. In order to study the model we used transfer-matrix [...]

The Simplest Model of Multisite Adsorption of Molecules with Different Orientation in Adlayer

Fefelov V.F., Gorbunov V.A., Myshlyavtsev A.V., Myshlyavtseva M.D., Myshlyavtseva M.D., Omsk State Technical University, RU

The aim of the work is construction and study of the simplest model of multisite adsorption of molecules with different orientation in adlayer. To construct the model lattice gas (LG) model is used. In the [...]

Chemical and Phase Transformations of Nanocrystalline Oxides in a Carbon Nanoreactor

Volodin A.M., Zaikovskii V.I., Bedilo A.F., Klabunde K.J., Boreskov Institute of Catalysis, RU

The application of nanocrystalline oxides as precursors for synthesis of new nanomaterials with the preservation of the dimensions of the initial nanoparticles is of considerable interest. Its main problem is the sintering and growth of [...]

The Nanophysics of TiO2/Au Model Catalyst as a Key to Understanding the High Efficiency of Real Au/TiO2 Catalyst and Technological Consequences

Tvauri I.V., Remar D.F., Turiev A.M., Tsidaeva N.I., Fukutani K., Magkoev T.T., University of North Ossetia, RU

Interaction of carbon monoxide and oxygen on the surface of titania/Au(111) inverse model catalyst held at 200 K has been studied by a set of surface science techniques. It was found that CO adsorbs on [...]

Control of solid surface properties by electron beam processing

Vasiljeva I.V., Mjakin S.V., Engineering Technology Center RADIANT, Ltd., RU

The effect of electron beam treatment upon various materials (oxides, sulfides, ceramics, polymers) is studied to clarify the general features of chemical reactions involving surface functional groups in correlation with the process parameters. The mechanisms [...]