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Труды сотрудников Института теплофизики УрО РАН
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 Найдено в других БД:Каталог книг и продолжающихся изданий (30)Каталог препринтов УрО РАН (1975 г. - ) (1)Нанотехнологии (1)Труды Института высокотемпературной электрохимии УрО РАН (35)Труды Института истории и археологии УрО РАН (2)Труды сотрудников Института теплофизики УрО РАН (112)Труды сотрудников Института химии твердого тела УрО РАН (70)Расплавы (36)Публикации Черешнева В.А. (23)Публикации Чарушина В.Н. (9)Каталог библиотеки ИЭРиЖ УрО РАН (8)Библиометрия (2)
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Общее количество найденных документов : 33
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 1-10    11-20   21-30   31-33 
1.
Инвентарный номер: нет.
   
   F 33

    Fedoseev, M. S.
    Catalytic activity of polyfluorinated copper (II) beta-dicetonates in urethane formation [Text] / M. S. Fedoseev, V. I. Saloutin, T. S. Sheshukova // Russian Journal of Applied Chemistry. - 1999. - Vol. 72, N 4. - P642-644
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: A series of unsymmetrical polyfluorinated copper (II) beta-diketonates were tested as catalysts in a model reaction of urethane formation and in synthesis of network elastomers

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2.
Инвентарный номер: нет.
   
   T 64

   
    Titanium dioxide xerogel modified with powder cellulose in oxidation of trimethylhydroquinone [Electronic resource] / A. B. Shishmakov, Yu. V. Mikushina, M. S. Valova, O. V. Koryakova, L. A. Petrov // Russian Journal of Applied Chemistry. - 2007. - Vol. 80, № 12. - P2107-2110. - Библиогр. : с. 2110 (17 назв.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: A procedure was developed for modification of titanium dioxide xerogel by addition of powder cellulose in the stage preceding hydrolysis of tetramethoxytitanium. The resulting catalytic systems based on the new material were studied in a model liquid-phase catalytic process of oxidative dehydrogenation of trimethylhydroquinone with atmospheric oxygen.

\\\\Expert2\\nbo\\Russian Journal of Applied Chemistry\\2007, v. 80, N 12, p.2107.pdf
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3.
Инвентарный номер: нет.
   
   M 46

    Medvedeva, N.
    Study of rare encounters in a membrane using quenching of cascade reaction between triplet and photochrome probes with nitroxide radicals [Text] / N. Medvedeva, V. Papper, G. I. Likhtenshtein // Physical Chemistry Chemical Physics. - 2005. - Vol. 7, № 18. - P3368-3374. - Библиогр. : с. 3373 (26 назв.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Measurements of active encounters between molecules in native membranes containing ingredients, including proteins, are of prime importance. To estimate rare encounters in a high range of rate constants (rate coefficients) and distances between interacting molecules in membranes, a cascade of photochemical reactions for molecules diffusing in multilamellar liposomes was investigated. The sensitised cascade triplet cis-trans photoisomerisation of the excited stilbene involves the use of a triplet sensitiser (Erythrosin B), a photochrome stilbene-derivative probe (4-dimethylamino-4 -aminostilbene) exhibiting the phenomenon of trans-cis photoisomerisation, and nitroxide radicals (5-doxyl stearic acid) to quench the excited triplet state of the sensitiser. Measurement of the phosphorescence lifetime of Erythrosin B and the fluorescence enhancement of the stilbene-derivative photochrome probe, at various concentrations of the nitroxide probe, made it possible to calculate the quenching rate constant kq= 1.1*10 15 cm2 M-1 s-1 and the rate constant of the triplet-triplet energy transfer between the sensitiser and stilbene probe kT= 1.0*1012 cm2 M-1 s-1. These values, together with the data on diffusion rate constant, obtained by methods utilising various theoretical characteristic times of about seven orders of magnitude and the experimental rate constants of about five orders of magnitude, were found to be in good agreement with the advanced theory of diffusion-controlled reactions in two dimensions. Because the characteristic time of the proposed cascade method is relatively large (0.1 s), it is possible to follow rare collisions between molecules and free radicals in model and biological membranes with a very sensitive fluorescence spectroscopy technique, using a relatively low concentration of probes.

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4.
Инвентарный номер: нет.
   
   H 86

    Hristov, P. K.
    Lipid peroxidation induced by ultrasonication in Ehrlich ascitic tumor cells [] / P. K. Hristov, L. A. Petrov, E. M. Russanov // Cancer Letters. - 1997. - Vol.121, N1. - С. 7-10
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The mechanism of sonodynamic action in tumor cells is poorly investigated. It is known that ultrasound generates free radicals in phosphatidylcholine liposomes used as a membrane model. The participation of lipid peroxidation products in the mechanisms of physiological suppression of cell multiplication has been investigated for some tumor cells

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5.
Инвентарный номер: нет.
   
   C 74

   
    Complexation models of N-(2-carboxyethyl)chitosans with copper(II) ions [Text] / Yu. A. Skorik, C. A. R. Gomes, N. V. Podberezskaya, G. V. Romanenko, L. F. Pinto, Yu. G. Yatluk // Biomacromolecules. - 2005. - Vol. 6, № 1. - P189-195 . - ISSN 1525-7797
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The copper(II) complex formation equilibria of N-(2-carboxyethyl)chitosans with three different degrees of substitution (DS = 0.42, 0.92, and 1.61) were studied in aqueous solution by pH-potentiometric and UV-spectrophotometric techniques. It was demonstrated that the complexation model of CE-chitosans depends on DS: the [Cu(Glc-NR2)2] complexes are predominant for two lower substituted samples ("bridge model", log ?12 = 10.06 and 11.6, respectively), whereas the increase of DS leads to formation mainly of the [Cu(Glc-NR2)] complexes ("pendant model", log ?11 = 6.41). As a model for copper complexation with a disubstituted residue of CE-chitosan, the complex of N-methyliminodipropionate [CuMidp(H2O)]·(H2O) was synthesized and structurally characterized by XRD. The unit cell consists of two crystallographically nonequivalent Cu atoms having slightly distorted square pyramidal coordination; Midp constitutes the basal plane of the pyramid and acts as a tetradentate NO3 chelate-bridging ligand by the formation of two six-membered chelate rings (average Cu-O 1.99 A, Cu-N 2.04 A) and a bridge via carbonyl O atom (average Cu-O 1.99 A), an apical position is occupied by a water molecule (average Cu-Ow 2.30 A).

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6.
Инвентарный номер: нет.
   
   H 43

   
    Heavy metals removal by flocculation/precipitation using N-(2-carboxyethyl)chitosans [Text] / S. YU. Bratskaya, A. V. Pestov, Yu. G. Yatluk, V. A. Avramenko // Colloids and Surfaces A: Physicochemical and Engineering Aspects. - 2009. - Vol. 339, № 1-3. - P140-144
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Here we report on solution properties and flocculation performance of polyampholyte chitosan derivatives - N-carboxyethylated chitosans (CEC) - synthesized "in gel" by treatment of chitosan with acrylic acid. We show that carboxyethylation with the substitution degrees (DS) from 0.7 to 1.6 yields water-soluble derivatives, whose isoelectric points (IEP) range from 6.30 to 3.55. At pH 7.5 interaction of negatively charged CEC derivatives with positively charged colloids of the heavy metal hydroxides (Zn2+, Cu2+, Ni2+), serving as a model of postgalvanic wastewaters, results in lowering of electrokinetic potential of the hydroxide colloids and their precipitation at appropriate flocculant dose. Investigations of CEC flocculation performance depending on pH and DS show that the efficiency of metal removal decreases in the row Cu2+ Zn2+ Ni2+ corresponding to the row of the hydroxocomplex stability for these metals. The higher was pH of the system and DS of CEC derivative, the narrower was the flocculation window and the stronger was negative effect of flocculant overdosing on the efficiency of heavy metal removal. Based on the estimation of floc settling rates and the residual metal concentrations, we have concluded that the optimal DS of CEC derivatives for the precipitation of metal hydroxides is 0.7-1.0

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7.
Инвентарный номер: нет.
   
   A 10

   
    A generalized model of protolytic, complexing and colloidal properties of polyelectrolytes. Case study : N-(2-carboxyethyl)chitosans [] : доклад, тезисы доклада / S. YU. Bratskaya, A. Golikov, A. V. Pestov, A. Voit, Yu. G. Yatluk, V. A. Avramenko // EUCHIS 2009 - 9th International Conference of the European Chitin Society , Venice, Italy, 23-26 May 2009 : conference book. - Venice, Italy, 2009. - 21 (P1-5)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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8.
Инвентарный номер: нет.
   
   S 98

   
    Synthesis of perfluoroheptanal by ozonolysis of perfluoro-1-octene [Electronic resource] / V. N. Odinokov, V. R. Akhmetova, R. G. Savchenko, A. A. Fatykhov, A. Ya. Zapevalov // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 1994. - Vol. 43, № 6. - P1084-1085
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Perfluoro-1-octene was used as a model for developing a method for the preparative ozonolysis of perfluoro-1-alkenes to the corresponding perfluoro-nor-alkenals. Perfluoroheptanal was synthesized

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\1994, 43 (6), 1084.pdf
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9.
Инвентарный номер: нет.
   
   P 51

   
    Petrological model of formation of giant ore deposits [Text] / A. A. Marakushev, N. A. Paneyakh, V. L. Rusinov, N. N. Pertsev, I. A. Zotov // Geology of Ore Deposits. - 1998. - Vol. 40, № 3. - P211-227. - Bibliogr. : p. 227 (46 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
PETROLOGICAL MODEL -- MODELLING -- ORE -- ORE DEPOSITS
Аннотация: The available data on the giant ore deposits of chromium (Kempirsai in the Urals), platinum-group metals (Bushveld in Africa), platinum-bearing copper-nickel ores (Talnakh in the Noril'sk district, northern part of the Siberian Platform), zinc-copper (massive sulfide) ores (Gai, Sibai, and Uchaly) and apatite deposits (Khibiny, the Kola Peninsula) is summarized. The giant sizes of the deposits are caused by extraordinary ore-forming processes directly associated with the highly extensive petrogenetic processes. These processes resulted in the formation of peculiar dunites in the hyperbasite complexes (chromite ores), agpaitic urtites in alkaline associations (apatite deposits), development of low-sulfide horizons and hortonolite dunites in the basite-hyperbasite layered intrusions (platinum-group metal deposits), specific processes of transmagmatic sulfurization of the iron-rich igneous differentiates (Cu-Ni sulfide and massif sulfide ores), and processes of magmatic replacement of hyperbasites that cause the alkaline agpaitic affinity of magmatism. This agpaitic tendency increases the solubility of carbon-bearing fluid components (CO2, CH4, etc.) in magma and leads to the concentration of ore metals, which form chloride-carbonate and hydrocarbon migrating compounds in the transmagmatic fluids. Some mineralogical-petrological prospecting criteria are deduced on the basis of genetic models of giant ore deposits.

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10.
Инвентарный номер: нет.
   
   S 45

   
    Selection of genetically modified hematopoietic cells in vitro and in vivo using alkylating agent lysomustine [Text] / F. N. Rozov, T. S. Grinenko, G. L. Levit, V. P. Krasnov, A. V. Belyavskii // Analytical Biochemistry . - 2010. - Vol. 404, № 2. - P149-154
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Efficient gene transfer into hematopoietic stem cells is vital for the success of gene therapy of hematopoietic and immune system disorders. An in vivo selection system based on a mutant form of the O6-methylguanine-DNA-methyltransferase gene (MGMTm) is considered one of the more promising strategies for expansion of hematopoietic cells transduced with viral vectors. Here we demonstrate that MGMTm-expressing cells can be efficiently selected using lysomustine, a nitrosourea derivative of lysine. K562 and murine bone marrow cells expressing MGMTm are protected from the cytotoxic action of lysomustine in vitro. We also show in a murine model that MGMTm-transduced hematopoietic cells can be expanded in vivo on transplantation into sublethally irradiated recipients followed by lysomustine treatment. These results indicate that lysomustine can be used as a potent novel chemoselection drug applicable for gene therapy of hematopoietic and immune system disorders

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