RU – Page 4 – TechConnect Briefs

In vitro anticancer activity of poly(3-hydroxybutyrate) nanoparticles loaded with antitumor drug Paclitaxel

Yakovlev S.G., Bonartsev A.P., Bonartseva G.A., Bagrov D.V., Efremov Yu.M., Boskhomdzhiev A.P., Filatova E.V., Ivanov P.V., Makhina T.K., Bonartseva G.A., A.N.Bach’s Institute of Biochemistry Russian Academy of Sciences, RU

We have produced nanoparticles loaded with antitumor drug paclitaxel. Operated nanospheres were prepared on the base of a biodegradable and biocompatible polymer of bacterial origin, poly(3-hydroxybutyrate) (PHB). PHB nanoparticles with paclitaxel (230±55 nm in diameter) [...]

Simulation of Gas Flows in Micro Devices by Solving the Boltzmann Kinetic Equation

Anikin Yu.A., Dodulad O.I., Kloss Yu.Yu., Martynov D.V., Tcheremissine F.G., Shuvalov P.V., Moscow Institute of Physics and Technology, National research centre “Kurchatov institute”, RU

Numerical modeling of gas flows in micro devices has practical value due to the high application opportunities of such devices to the relevant industries. Gas behavior is accurately described by the Boltzmann equation of the [...]

Dynamics of Magnetic Nanofluids with Frozen-in Magnetization

Sokolov V.V., Moscow State University of Instrument Engineering and Computer Science, RU

It was shown that in an ideal non-conducting magnetic nanofluid with frozen- in magnetization there are three types of waves: slow and fast magnetosonic waves and Alfvén -type wave. Alfvén -type wave propagating in non-conducting [...]

A model to describe the hump-like feature observed in the accumulation branch of CV-characteristics of MOS capacitors with oxide-hosted Si nanoparticles

Stuchinsky V.A., Kamaev G.N., Efremov M.D., Arzhannikova S.A., Institute of Semiconductor Physics, RU

A simple model is presented to clarify the formation of a hump-like feature observed in the accumulation branch of CV-characteristics of MOS capacitors with oxide-hosted Si nanoparticles.

Hysteresis-free spin valves for GMR sensors

Ustinov V.V., Milyaev M.A., Naumova L.I., Proglyado V.V., Krinitsina T.P., Institute of Metal Physics, RU

Top spin valves Ta/[FeNi/CoFe]/Cu/ CoFe/AFM/Ta based on antiferromagnetics (AFM) Fe50Mn50 and Mn75Ir25 with varying [Fe20Ni80/Co90Fe10] composite free layer parameters and Cu interlayer thickness were prepared by DC magnetron sputtering. GMR characteristics of spin valves (SV) [...]

Exchange Bias Formation Mechanism in (110)Al2O3/Py/Mn/Ta Nanostructures

Blinov I.V., Krinitsina T.P., Matveev S.A., Milyaev M.A., Popov V.V., Ustinov V.V., Institute of Metal Physics, RU

Magnetic multilayer nanostructures possessing exchange bias are of interest for spintronics as effective magnetic field sensors. The mechanism and conditions of the exchange bias formation in (110) Al2O3/Py(30nm)/Mn(100nm)/ Ta(10nm) nanostructures at thermal-magnetic treatment have been [...]

Amorphous and semicrystalline phases in ultrathin films of poly(3-hydroxybutirate)

Bagrov D.V., Bonartsev A.P., Bonartseva G.A., Zhuikov V.A., Boskhomdzhiev A.P., Myshkina V.L., Makhina T.K., Zharkova I.I., Yakovlev S.G., Voinova V.V., Ivanov P.V., Bonartseva G.A., Shaitan K.V., Lomonosov Moscow State University, Faculty of Biology, RU

Poly(3-hydroxybutirate) (PHB) is a bacterial polyester, which shows a high potential as a material for biotechnology and medicine, including drug delivery and production of biodegradable implants. Being a semicrystalline polymer, PHB is able to form [...]

New approaches of soft chemistry for preparation of nanostructured multifunctional composite coatings

Vinogradov A.V., Vinogradov V.V., Vinogradov A.V., Vinogradov V.V., Agafonov A.V., Institute of Solution Chemistry RAS, RU

In this work, we have obtained film heterostructures such as MeO/TiO2 possessing high photoactivity by low-temperature sol-gel method. We have succeeded in obtaining photoactive TiO2-based crystalline coatings, FeTiO3 and CoTiO3, without calcination and possessing an [...]

Fundamental background of improving the design and performance of Au/TiO2 supported catalyst

Tvauri I.V., Tsidaeva N.I., Turiev A.M., Khubezhov S.A., Fukutani K., Christmann K., Magkoev T.T., University of North Ossetia, RU

Studies of metal oxide catalysts have widely increased in recent years due to the important role that these materials play in industrial catalytic processes for the conversion of hydrocarbons, the control of environmental pollution and [...]

Template – assisted sol – gel approach to synthesize new perspective alumina based catalysts

Vinogradov A.V., Vinogradov V.V., Vinogradov A.V., Vinogradov V.V., Agafonov A.V., Institute of Solution Chemistry of Russian Academy of Sciences, RU

In this work, high stable mesoporous γ-aluminas with different pore structure were synthesized. New kinds of templates were adapted to prepare alumina based catalysts with uniform and bimodal mesopore distribution with ‘small’ and ‘large’ mesopores. [...]