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    Synthesis of fullerenes in a high-frequency arc plasma under elevated helium pressure / Г. Н. Чурилов, W. Krätschmer [et al.] // Carbon. - 2013. - Vol. 62. - P. 389-392DOI 10.1016/j.carbon.2013.06.022
   Перевод заглавия: Синтез фуллеренов в высокочастотной дуговой плазме при повышенном давлении гелия
Аннотация: We show that in a carbon–helium high-frequency (66 kHz) arc discharge the fullerene yield and composition can be controlled by changing the helium pressure. By emission spectroscopy we could derive the excitation temperature within the arc. We found that the radial temperature gradient of the arc plasma increases with increasing pressure. We further found that with increasing pressure the yield of fullerenes reaches a maximum of 12.6 wt.% at 0.12 MPa pressure and in the range from 0.16 to 0.38 MPa the fullerene content in the carbon soot stays within the limits of 7.2–7.0 wt.%. The content of С70 and higher fullerenes relative to the total amount of extractable fullerenes increases with pressure. Our results suggest that in the carbon–helium plasma fullerenes are mainly formed in a top-down process by the decay and annealing of large, hot precursor carbon molecules.

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Держатели документа:
LV Kirensky Inst Phys SB RAS, Krasnoyarsk 660036, Russia
Krasnoyarsk State Pedag Univ, Ctr Cross Disciplinary Invest, Krasnoyarsk 660049, Russia
Siberian Fed Univ, Krasnoyarsk 660041, Russia
Max Planck Inst Nucl Phys, D-69029 Heidelberg, Germany;

Доп.точки доступа:
Churilov, G. N.; Krätschmer, W.; Osipova, I. V.; Glushchenko, G. A.; Vnukova, N. G.; Kolonenko, A. L.; Dudnik, A. I.; Дудник, Александр Иванович
}
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Processing of detonation diamonds with metal-containing high-frequency arc plasma and their properties / G. N. Churilov [et al.] // Fuller. Nanotub. Carbon Nanostruct. - 2012. - Vol. 20, Is. 4/7 SI. - P. 611-615, DOI 10.1080/1536383X.2012.657014. - Cited References: 5. - The work was partially supported by RFBR foundation (project 09-03-00383). . - ISSN 1536-383X

РУБ Chemistry, Physical + Nanoscience & Nanotechnology + Materials Science, Multidisciplinary + Physics, Atomic, Molecular & Chemical

Кл.слова (ненормированные):
Nanodiamond -- nanoparticle -- metal-containing plasma
Аннотация: This paper describes coating of diamond powder with metal by plasma. Arc plasma was generated in double jet high-frequency argon-operated plasmatron with atomized metal inserts. The diamond powder was added to the plasma in a flow of helium. Copper and nickel coated particles of detonation and industrial diamonds were studied by XRD, XPS, SEM methods and electron magnetic resonance. Results of these studies are presented.

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Держатели документа:
[Churilov, G. N.
Osipova, I. V.
Vnukova, N. G.
Glushenko, G. A.
Petrakovskaya, E. A.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Kolonenko, A. L.
Chiganov, A. S.] Krasnoyarsk State Pedag Univ, Krasnoyarsk, Russia
[Tomashevich, Ye. V.
Zhizhaev, A. M.] Russian Acad Sci, Siberian Branch, Inst Chem & Chem Technol, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Churilov, G. N.; Чурилов, Григорий Николаевич; Osipova, I. V.; Осипова, Ирина Владимировна; Vnukova, N. G.; Внукова, Наталья Григорьевна; Glushchenko, G. A.; Глущенко, Гарий Анатольевич; Petrakovskaya, E. A.; Петраковская, Элеонора Анатольевна; Kolonenko, A. L.; Колоненко, Андрей Леонидович; Chiganov, A. S.; Tomashevich, Y. V.; Томашевич, Евгений Владимирович; Zhyzhaev, A. M.; Жижаев, Анатолий Михайлович
}
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    Установка для синтеза нанодисперсных веществ на основе углерода (фуллеренов, нанотруб и наночастиц со структурой ядро-оболочка) в потоке углеродно-гелиевой плазмы атмосферного и более высокого давления / Г. Н. Чурилов [и др.] // IV Всероссийская молодёжная конференция "Функциональные наноматериалы" : сб. материалов. - М. : ИМЕТ РАН, 2012. - С. 365-366 . - ISBN 978-5-4253-0478-0
   Перевод заглавия: Installation for synthesis of carbon nanodispersed substances (fullerenes, nanotubes and nanoparticles structure core-shell) in a carbon-helium plasma at atmospheric and higher pressures
Аннотация: In this paper we presented description installation, which we created for synthesis fullerenes, nanotubes and nanoparticles. We presented results which we obtained by carry out investigations with this substances

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Материалы конференции
Держатели документа:
Институт физики им. Л.В. Киренского СО РАН

Доп.точки доступа:
Чурилов, Григорий Николаевич; Churilov, G. N.; Осипова, Ирина Владимировна; Osipova, I. V.; Внукова, Наталья Григорьевна; Vnukova, N. G.; Глущенко, Гарий Анатольевич; Glushchenko, G. A.; Колоненко, Андрей Леонидович; Kolonenko, A. L.; Томашевич, Евгений Владимирович; Жижаев, Анатолий Михайлович; "Функциональные наноматериалы и высокочистые вещества", Всероссийская молодёжная конференция с элементами научной школы для молодежи (4 ; 2012 ; окт. ; 1-5 ; Суздаль)
}
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The formation of higher and endohedral fullerenes in the plasma of high-frequency arc with low-frequency modulation under elevated helium pressure / I. V. Osipova [et al.] // Int. Conf. "Adv. Carbon Nanostruct." (ACNS) : Abstract of inv. lect. and contrib. papers. - St. Petersburg, 2013. - P. 140

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Доп.точки доступа:
Osipova, I. V.; Осипова, Ирина Владимировна; Churilov, G. N.; Чурилов, Григорий Николаевич; Glushchenko, G. A.; Глущенко, Гарий Анатольевич; Lopatin, V. A.; Лопатин, Владислав Александрович; Vnukova, N. G.; Внукова, Наталья Григорьевна; Tomashevich, Y. V.; Томашевич, Евгений Владимирович; "Advanced Carbon Nanostructures", International Conference(11 ; 2013 ; July ; 1-5 ; Saint-Petersburg)
}
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Synthesis of 6H-SiC single-crystal nanowires in a flow of carbon-silicon high-frequency arc plasma / G. A. Glushchenko [et al.] // Phys. Solid State. - 2014. - Vol. 56, Is. 10. - P. 2107-2111, DOI 10.1134/S106378341410014X. - Cited References: 34. - This study was supported by the National Academy of Sciences of Belarus and the Siberian Branch of the Russian Academy of Sciences within the framework of the Interdisciplinary Integration project no. 24. . - ISSN 1063-7834. - ISSN 1090-6460

РУБ Physics, Condensed Matter
Рубрики:
LARGE-SCALE SYNTHESIS
   BETA-SIC NANOWIRES
   FIELD-EMISSION PROPERTIES
   CARBIDE NANOWIRES
   NANORODS
   GROWTH
   NANOSTRUCTURES
   FULLERENES
   DISCHARGE
Аннотация: Silicon carbide 6H-SiC nanoparticles and nanowires were obtained in carbon-silicon high-frequency arc plasma plasma in a helium atmosphere at a pressure of 0.1-0.6 MPa. It was shown that 6H-SiC nanowires grow from the arc plasma, as well as from the vapor, according to the known mechanism of vapor-solid condensation on a cold surface covered with single-crystal silicon carbide nuclei. The content of silicon carbide nanowires in the condensate reached 60 wt %. The obtained single-crystal silicon 6H-SiC nanowires had the diameter of 15-18 nm and length of 200-600 nm.

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Публикация на русском языке Синтез монокристаллических нанопроволок 6H-SiC в потоке углеродно-кремниевой плазмы высокочастотной дуги [Текст] / Г. А. Глущенко [и др.] // Физ. тверд. тела. - 2014. - Т. 56 Вып. 10. - С. 2039-2043

Держатели документа:
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660041, Russia
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Glushchenko, G. A.; Глущенко, Гарий Анатольевич; Leonova, T. A.; Kolonenko, A. L.; Колоненко, Андрей Леонидович; Dudnik, A. I.; Дудник, Александр Иванович; Osipova, I. V.; Осипова, Ирина Владимировна; Vnukova, N. G.; Внукова, Наталья Григорьевна; Nemtsev, I. V.; Немцев, Иван Васильевич; Zharkov, S. M.; Жарков, Сергей Михайлович; Churilov, G. N.; Чурилов, Григорий Николаевич
}
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Semenov, A. P.
Stability of the C-C covalent bonds in fullerenes in the solid body-vapor structure during the thermodynamic action by a quasi-pulsed electron beam / A. P. Semenov, I. A. Semenova, G. N. Churilov // Tech. Phys. - 2015. - Vol. 60, Is. 4. - P. 610-613, DOI 10.1134/S1063784215040258. - Cited References:12. - This work was supported by the Russian Foundation for Basic Research (project no. 12-08-98000-r_sibir'_a) and the program of basic research of the Siberian Branch, Russian Academy of Sciences (project no. II.9.3.1). . - ISSN 1063. - ISSN 1090-6525. -

РУБ Physics, Applied
Рубрики:
FILMS
Аннотация: The explosive evaporation of a fullerene mixture in a vacuum of ∼10−2 Pa during the contraction of a 1-kW hollow electron beam into a spot on a substrate in a time of 0.1–1 s is considered. A comparative analysis of the Raman spectra and the absorption electron spectra of a starting fullerene mixture powder and the vapor condensates shows that the evaporation of C60 and C70 fullerenes proceeds without breaking C–C covalent bonds.

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Публикация на русском языке Семенов А. П. Устойчивость C-C-ковалентных связей фуллеренов в структуре твердое тело-пар при термодинамическом воздействии квазиимпульсным электронным пучком [Текст] / А. П. Семенов, И. А. Семенова, Г. Н. Чурилов // Журн. техн. физ. - 2015. - Т. 85 Вып. 4. - С. 134-137

Держатели документа:
Russian Acad Sci, Inst Phys Mat Sci, Siberian Branch, Ulan Ude 670047, Russia.
Russian Acad Sci, Siberian Branch, Kirenskii Inst Phys, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Semenova, I. A.; Churilov, G. N.; Чурилов, Григорий Николаевич; Russian Foundation for Basic Research [12-08-98000-r_sibir'_a]; program of basic research of the Siberian Branch, Russian Academy of Sciences [II.9.3.1]
}
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    Method of the quantitative express analysis of endohedral fullerenes / V. S. Koravanets [et al.] // International Conference Advanced Carbon Nanostructures : abstracts of invited lectures & contributed papers. - 2015. - Ст. P1-09. - P. 68
   Перевод заглавия: Методика количественного экспресс анализа эндоэдральных фуллеренов

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Доп.точки доступа:
Koravanets, V. S.; Vnukova, N. G.; Внукова, Наталья Григорьевна; Kolonenko, A. L.; Колоненко, Андрей Леонидович; Dubinina, I. A.; Churilov, G. N.; Чурилов, Григорий Николаевич; Guliaeva, U. E.; "Advanced carbon nanostructures", International conference(12 ; 2015 ; June 29 - July 3 ; Saint-Petersburg)
}
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Molecular dynamical modelling of endohedral fullerenes formation in plasma / A. S. Fedorov [et al.] // IOP Conf. Ser.: Mater. Sci. Eng. - 2016. - Vol. 110, Is. 1, DOI 10.1088/1757-899X/110/1/012078
Аннотация: The initial stages of fullerene and endohedral metallofullerene (EMF) synthesis in carbon-helium plasma at 1500 K and 2500 K have been simulated with quantum chemical molecular dynamics (MD) based on density-functional tight-binding (DFTB). The cases of formation of large (>100 atoms) sp2-carbon clusters with scandium atoms inside were observed. These clusters are considered as precursors of fullerenes or EMFs, and thus it is shown that formation of EMFs can be explained within the framework of »shrinking hot giant« mechanism. Also, the dependence of formation rates on plasma parameters, including temperature, buffer gas and metal atoms concentrations, has been studied.

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Доп.точки доступа:
Fedorov, A. S.; Федоров, Александр Семенович; Kovaleva, E. A.; Lubkova, T. A.; Popov, Z. I.; Попов, Захар Иванович; Kuzubov, A. A.; Кузубов, Александр Александрович; Visotin, M. A.; Irle, S.; International Scientific Conference on Radiation-Thermal Effects and Processes in Inorganic Materials(11 ; 31 Aug. - 10 Sept. 2015)
}
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A method and apparatus for high-throughput controlled synthesis of fullerenes and endohedral metal fullerenes / G. N. Churilov [et al.] // Tech. Phys. Lett. - 2016. - Vol. 42, Is. 5. - P. 475-477, DOI 10.1134/S1063785016050072. - Cited References: 9. - This work was supported by a grant of the Ministry of Science and Education of the Russian Federation, ID RFMEFI61314X0010, project no. 14.613.21.0010. . - ISSN 1063-7850

РУБ Physics, Applied
Рубрики:
Metallofullerenes
Plasma
Аннотация: A method for synthesis of carbon nanostructures in a high-frequency arc discharge in the flow of helium (3–4 L/min) is presented. It is shown that the plasma-chemical synthesis of fullerenes and endohedral metal fullerenes (EMFs) can be controlled by changing helium pressure in the chamber. Temperature and electron concentration along the line normal to the discharge axis decrease upon moving away from the axis to the periphery; the larger the pressure, the sharper is the decrease in these parameters. The optimal helium pressure of 98 kPa was found in obtaining the Gd@C82 EMF which corresponds to the maximal EMF yield of 5 wt %. © 2016, Pleiades Publishing, Ltd.

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Публикация на русском языке Метод и установка для высокопроизводительного управляемого синтеза фуллеренов и эндоэдральных металлофуллеренов [Текст] / Г. Н. Чурилов [и др.] // Письма в Журн. техн. физ. : Санкт-Петербургская издательская фирма "Наука" РАН, 2016. - Т. 42 Вып. 9. - С. 64–70

Держатели документа:
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Leibniz Institute for Solid State and Material Research, Dresden, Germany

Доп.точки доступа:
Churilov, G. N.; Чурилов, Григорий Николаевич; Popov, A. A.; Vnukova, N. G.; Внукова, Наталья Григорьевна; Dudnik, A. I.; Дудник, Александр Иванович; Glushchenko, G. A.; Глущенко, Гарий Анатольевич; Samoylova, N. A.; Dubinina, I. A.; Дубинина, Ирина Александровна; Gulyaeva, U. E.; Гуляева, Ульяна Евгеньевна
}
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10.

Relative Isomer Abundance of Fullerenes and Carbon Nanotubes Correlates with Kinetic Stability / A. S. Fedorov [et al.] // Phys. Rev. Lett. - 2011. - Vol. 107, Is. 17. - Ст. 175506, DOI 10.1103/PhysRevLett.107.175506. - Cited References: 29. - S. I, P. V. A, and A. S. F gratefully acknowledge generous hospitality during their visits to Krasnoyarsk (S. I) and Fukui Institute for Fundamental Chemistry in Kyoto and Nagoya University (P. V. A and A. S. F) under support of the joint JSPS-RFBR travel grant 09-02-92107. This work was partially supported by National Science Council (grants NSC96-2113-M009-022-MY3 and NSC96-2113-M009-011-MY3) and Ministry of Education of Taiwan (MOE-ATU project), as well as by the JAEA Research fellowship (P. V. A). We thank the Institute of Computer Modeling (Siberian Division of RAS) and the Joint Supercomputer Center RAS for opportunity to use cluster computers for performing all calculations. . - ISSN 0031-9007

РУБ Physics, Multidisciplinary
Рубрики:
CHEMICAL MOLECULAR-DYNAMICS
   C-60
   BUCKMINSTERFULLERENE
   MECHANISM
   ROAD
Кл.слова (ненормированные):
Carbon Nanostructures -- Kinetic factors -- Kinetic stability -- Thermal vibration -- Carbon nanotubes -- Fullerenes -- Isomers -- Kinetics
Аннотация: A methodology to evaluate the kinetic stability of carbon nanostructures is presented based on the assumption of the independent and random nature of thermal vibrations. The kinetic stability is directly correlated to the cleavage probability for the weakest bond of a given nanostructure. The application of the presented method to fullerenes and carbon nanotubes yields clear correlation to their experimentally observed relative isomer abundances. The general and simple formulation of the method ensures its applicability to other nanostructures for which formation is controlled by kinetic factors.

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Держатели документа:
[Fedorov, A. S.
Fedorov, D. A.] LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
[Kuzubov, A. A.
Avramov, P. V.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Avramov, P. V.] Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan
[Nishimura, Y.
Irle, S.] Inst Adv Res, Chikusa Ku, Nagoya, Aichi 4648602, Japan
[Nishimura, Y.
Irle, S.] Dept Chem, Chikusa Ku, Nagoya, Aichi 4648602, Japan
[Witek, Henryk A.] Natl Chiao Tung Univ, Dept Appl Chem, Hsinchu 30010, Taiwan
[Witek, Henryk A.] Natl Chiao Tung Univ, Inst Mol Sci, Hsinchu 30010, Taiwan
ИФ СО РАН
Kirensky Institute of Physics, Akademgorodok 50, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, av. Svobodny 79, Krasnoyarsk, 660041, Russian Federation
Advanced Science Research Center, Japan Atomic Energy Agency, 2-4 Shirakata Shirane, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195, Japan
Institute for Advanced Research, Department of Chemistry, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
Department of Applied Chemistry, Institute of Molecular Science, National Chiao Tung University, Hsinchu 30010, Taiwan

Доп.точки доступа:
Fedorov, A. S.; Федоров, Александр Семенович; Fedorov, D. A.; Федоров, Дмитрий Александрович; Kuzubov, A. A.; Кузубов, Александр Александрович; Avramov, P. V.; Аврамов, Павел Вениаминович; Nishimura, Y.; Irle, S.; Witek, H. A.
}
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11.

Synthesis and study of manganese-containing endohedral fullerenes / N. V. Bulina [et al.] // Phys. Solid State. - 2007. - Vol. 49, Is. 3. - P. 599-602, DOI 10.1134/S1063783407030377. - Cited References: 15 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
PLASMA
STATE
C-60
Аннотация: Fullerenes containing manganese and iron atoms are synthesized in a high-frequency carbon-helium plasma at atmospheric pressure. The electron paramagnetic resonance (EPR) spectrum of the synthesized compound contains not only lines attributed to iron atoms but also the lines of a manganese ion pair with an additional hyperfine structure. The latter lines are assigned to the endohedral complex Mn-2@C-n (n 70). The possible existence of these structures is evaluated from quantum-chemical calculations of the optimum geometry of the endohedral fullerene Mn-2@C-84 with C-2V symmetry. It is found that the manganese atoms are spaced similar to 2.72 angstrom apart at the center of the molecule.

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Bulina, N. V.; Булина, Наталья Васильевна; Petrakovskaya, E. A.; Петраковская, Элеонора Анатольевна; Fedorov, A. S.; Федоров, Александр Семенович; Churilov, G. N.; Чурилов, Григорий Николаевич
}
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12.

Electron density as the main parameter influencing the formation of fullerenes in a carbon plasma / G. N. Churilov [et al.] // Phys. Solid State. - 2002. - Vol. 44: 5th International Workshop on Fullerence and Atomic Clusters (JUL 02-06, 2001, ST PETERSBURG, RUSSIA), Is. 3. - P. 419-423, DOI 10.1134/1.1462659. - Cited References: 8 . - ISSN 1063-7834

РУБ Physics, Condensed Matter

Аннотация: Thermodynamic estimates are presented for the formation of spheroidal and flat carbon clusters from reactant species of different charges. Charge is shown to strongly influence the geometry and stability of flat clusters. Changes in the charge of flat clusters can promote both their folding to spheroidal structures and their dissociation. It is concluded that the fluctuations of electron concentration in carbon plasmas can result in the accumulation of fullerene clusters and the dissociation of flat clusters. (C) 2002 MAIK "Nauka / Interperiodica".

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Держатели документа:
Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Krasnoyarsk State Tech Univ, Krasnoyarsk 660074, Russia
Rice Univ, Houston, TX 77005 USA
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Churilov, G. N.; Чурилов, Григорий Николаевич; Novikov, P. V.; Новиков, Павел Вадимович; Lopatin, V. A.; Лопатин, Владислав Александрович; Vnukova, N. G.; Внукова, Наталья Григорьевна; Bulina, N. V.; Булина, Наталья Васильевна; Bachilo, S. M.; Tsyboulski, D.; Weisman, R. B.
}
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13.

Possible scheme of synthesis-assembling of fullerenes / F. N. Tomilin [et al.] // Phys. Solid State. - 2001. - Vol. 43, Is. 5. - P. 973-981, DOI 10.1134/1.1371387. - Cited References: 21 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
MOLECULAR-DYNAMICS
   ISOMERS
   C-60
   C60
Аннотация: A new scheme of fullerene formation is proposed on the basis of the similarity between the experimentally detected carbon structures. According to experimental data, the microclusters of C(2) and C(10) are synthesized first and then either an intermediate nucleus cluster or an obtainable lower fullerene is assembled from them. A high-symmetry fullerene can be assembled with a high probability from a nucleus cluster with a "good" symmetry. The atomic and electronic structures of molecules such as C(36), C(60), C(70), and C(76) are analyzed. For C(36), the NMR spectra are calculated and compared with the experimental data. (C) 2001 MAIK "Nauka/Interperiodica".

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Держатели документа:
Russian Acad Sci, Inst Chem & Chem Technol, Siberian Div, Krasnoyarsk 660049, Russia
Russian Acad Sci, Kirenskii Inst Phys, Siberian Div, Krasnoyarsk 660036, Russia
Krasnoyarsk State Tech Univ, Krasnoyarsk 660074, Russia
ИФ СО РАН
ИХХТ СО РАН
Inst. of Chem. and Chem. Technology, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660049, Russian Federation
Kirenskii Inst. of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Krasnoyarsk Stt. Tech. University, Krasnoyarsk, 660074, Russian Federation

Доп.точки доступа:
Tomilin, F. N.; Томилин, Феликс Николаевич; Avramov, P. V.; Аврамов, Павел Вениаминович; Varganov, S. A.; Kuzubov, A. A.; Кузубов, Александр Александрович; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич
}
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14.

A study of the synthesis products of fullerenes with nickel and cobalt / E. A. Petrakovskaya [et al.] // Tech. Phys. - 2001. - Vol. 46, Is. 1. - P. 42-46, DOI 10.1134/1.1340883. - Cited References: 15 . - ISSN 1063-7842

РУБ Physics, Applied
Рубрики:
COMPLEXES
SPECTRA
Аннотация: Qualitative analysis of the products of plasmochemical synthesis of fullerenes with metallic nickel and cobalt has been carried out using electron paramagnetic resonance (EPR) and electron microscopy. These studies show that the synthesis products are mainly fullerenes, metallic nanoparticles coated with an insulating layer, and isolated atomic clusters. (C) 2001 MAIK "Nauka/Interperiodica".

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Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
ИФ СО РАН
Kirenskii Inst. of Physics, Siberian Branch, RAS, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Petrakovskaya, E. A.; Петраковская, Элеонора Анатольевна; Bulina, N. V.; Булина, Наталья Васильевна; Churilov, G. N.; Чурилов, Григорий Николаевич; Puzyr', A. P.
}
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15.

Avramov, P. V.
Atomic-core dynamics and the electronic structure of some endo- and exohedral complexes of fullerenes with light elements / P. V. Avramov, S. A. Varganov, S. G. Ovchinnikov // Phys. Solid State. - 2000. - Vol. 42, Is. 11. - P. 2168-2175, DOI 10.1134/1.1324059. - Cited References: 39 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
M-AT-C-60 ENDOHEDRAL COMPLEXES
   MOLECULAR-DYNAMICS
   PHASE-TRANSITION
   AB-INITIO
   SOLID C60
   C-60
   IONS
Аннотация: The atomic and electronic structure of some endo-, exo-, and endo-exohedral complexes of the fullerene C-60 with various guest atoms and molecules (He-n, H-2, and Li-2) are investigated using semiempirical and nonempirical quantum-chemical methods. The atomic core dynamics is studied by the method of molecular dynamics. It is shown that guest atoms and molecules in fullerene polyhedra acquire an orbital angular momentum due to the correlated motion of nuclei above the low-energy barriers of the potential surface within the carbon polyhedron even at low temperatures (from 4 to 78 K). The emergence of orbital angular momenta of nuclei of guest atoms and molecules is attributed to a change in the contribution of the orbital angular momentum of electrons to the potential surface of the complexes. The motion of Li ions in a polyhedron leads to blurring of the top of the valence band and to the emergence of a charge polarization wave in the carbon polyhedron. (C) 2000 MAIK "Nauka/Interperiodica".

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Russian Acad Sci, Kirenskii Inst Phys, Siberian Div, Krasnoyarsk 660036, Russia
Krasnoyarsk State Univ, Krasnoyarsk, Russia
Krasnoyarsk State Univ, Krasnoyarsk 660062, Russia
ИФ СО РАН

Доп.точки доступа:
Varganov, S. A.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Аврамов, Павел Вениаминович
}
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16.

Novikov, P. V.
Characteristics of the heating dynamics of a graphite conductor taking into account the skin effect / P. V. Novikov, G. N. Churilov // Tech. Phys. - 2000. - Vol. 45, Is. 9. - P. 1214-1218, DOI 10.1134/1.1318113. - Cited References: 13 . - ISSN 1063-7842

РУБ Physics, Applied
Рубрики:
FULLERENES
C-60
SPECTRA
Аннотация: Calculations for a one-dimensional model of RF heating of a cylindrical graphite conductor have been carried out. The heating dynamics are analyzed in the general form. Conductor temperature profiles and the times for heating up to the graphite sublimation temperature as a function of current and frequency have been obtained. A model of conductor heating with partial return of the energy irradiated by the conductor surface has been considered. Frequency and current ranges have been determined to carry out this graphite sublimation method in a chamber with reflecting walls. The problem is associated with carbon vapor production and subsequent synthesis of fullerenes and other carbon structures. (C) 2000 MAIK "Nauka/ Interperiodica".

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Krasnoyarsk State Tech Univ, Krasnoyarsk 660074, Russia
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Churilov, G. N.; Чурилов, Григорий Николаевич
}
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17.

Avramov, P. V.
Mechanisms of inelastic scattering of low-energy protons by C6H6, C-60, C6F12, and C60F48 molecules / P. V. Avramov, B. I. Yakobson, G. E. Scuseria // Phys. Solid State. - 2006. - Vol. 48, Is. 1. - P. 177-184, DOI 10.1134/S106378340601032X. - Cited References: 23 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
DYNAMICS SIMULATIONS
   FULLERENES
   COMPLEXES
   BUCKMINSTERFULLERENE
   HELIUM
   ATOMS
Аннотация: The mechanisms of inelastic scattering of low-energy protons with a kinetic energy of 2-7 eV by C6H6, C6F12, C-60, and C60F48 molecules are studied using the methods of quantum chemistry and nonempirical molecular dynamics. It is shown that, for the C6H6 + proton and C-60 + proton systems, starting from a distance of 6 angstrom from the carbon skeleton, the electronic charge transfer from the aromatic molecule to H+ occurs with a probability close to unity and transforms the H+ ion into a hydrogen atom and the neutral C6H6 and C-60 molecules into cation radicals. The mechanism of interaction of low-energy protons with C6F12 and C60F48 molecules has a substantially different character and can be considered qualitatively as the interaction between a neutral molecule and a point charge. The Coulomb perturbation of the system arising from the interaction of the noncompensated proton charge with the Mulliken charges of fluorine atoms results in an inversion of the energies of the electronic states localized, on the one hand, on the positively charged hydrogen ion and, on the other hand, on the C6F12 and C60F48 molecules. As a result, the neutral molecule + proton state becomes the ground state. In turn, this inversion makes the electronic charge transfer energetically unfavorable. Quantum-chemical and molecular-dynamics calculations on different levels of theory showed that, for fluorine derivatives of some aromatic structures (C6F12, C60F48), the barriers to proton penetration through carbon hexagons are two to four times lower than for the corresponding parent systems (C6H6, C-60). This effect is explained by the absence of active pi-electrons in the case of fluorinated molecules.

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia
Rice Univ, Ctr Biol & Environm Nanotechnol, Houston, TX 77005 USA
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Center for Biological and Environmental Nanotechnology, Rice University, Houston, TX 77005-1892, United States

Доп.точки доступа:
Yakobson, B. I.; Scuseria, G. E.; Аврамов, Павел Вениаминович
}
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18.

Churilov, G. N.
Preparation of fullerenes and nanotubes in coal plasma jet in kilohertz frequency range / G. N. Churilov, A. Y. Korets, Y. N. Titarenko // Zhurnal Tek. Fiz. - 1996. - Vol. 66, Is. 1. - P. 191-194. - Cited References: 6 . - ISSN 0044-4642

РУБ Physics, Applied
Рубрики:
SPECTRA
CARBON

WOS

Доп.точки доступа:
Korets, A. Y.; Titarenko, Y. N.
}
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19.

    Влияние биоматериалов медицинского назначения на структурно-функциональные особенности моноцитов / Н. Г. Мензянова [и др.] // Журн. СФУ. Сер. "Биология". - 2016. - Т. 9, № 1. - С. 33-42, DOI 10.17516/1997-1389-2015-9-1-33-42 . - ISSN 1997-1389
   Перевод заглавия: Effect of Biomaterials of Medical Purpose on the Structural and Functional Features of Monocytes
Кл.слова (ненормированные):
biomaterials for medical uses -- Polyhydroxyalkanoates -- monocytes -- nanodiamonds -- fullerenes -- биоматериалы медицинского назначения -- моноциты -- наноалмазы -- фуллерены -- полигидроксиалканоаты
Аннотация: Изучены морфофункциональные особенности моноцитов в условиях кратковременного культивирования in vitro на носителях из биополимера полигидроксиалканоата (ПГА) в присутствии наноалмазов (НА) и фуллеренов (Ф). Показано, что НА и Ф в исследованных концентрациях не влияли на жизнеспособность моноцитов в кратковременной культуре. Соотношение морфологических классов моноцитов в присутствии НА и Ф существенно отличалось от контрольного варианта культивирования. Влияние НА и Ф характеризовалось дозовой зависимостью. Воздействие наночастиц на культуру моноцитов значительно изменялось при формировании белковой короны на поверхности НА и Ф, что приводило к возникновению новых количественных соотношений между морфологическими классами моноцитов в культуре in vitro. Полученные результаты позволяют рассматривать кратковременную культуру моноцитов in vitro как адекватную модельную систему для оценки влияния новых материалов на процессы дифференцировки субпопуляций моноцитов.
The morphological and functional features of the monocytes in a short-term in vitro cultivation on substrates of biopolymer polyhydroxyalkanoate (PHA) in the presence of nanodiamonds (ND) and fullerene (F) were studied. It has been shown that ND and F in the studied concentrations did not affect the viability of monocytes in the short-term culture. The ratio of morphological classes in the presence of ND and F signi?cantly different from the control group of cultivation. Effects of NA and F were characterized by dose-dependent. The formation of a protein corona on the surface of NA and F led to signi?cant changes in the effects of nanoparticles and the formation of new quantitative relationships between morphological classes of monocytes in culture in vitro. The results allow to consider a short-term culture of monocytes in vitro as a model system for adequate assessment of the impact of new materials on the processes of differentiation of monocyte subpopulations.

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Держатели документа:
Институт физики им. Л.В. Киренского СО РАН
Сибирский федеральный университет

Доп.точки доступа:
Мензянова, Н. Г.; Menzyanova N. G.; Николаева, Е. Д.; Nikolaeva E. D.; Винокурова, Д. В.; Vinokurova Daria V.; Шабанов, Александр Васильевич; Shabanov, A. V.; Шершнева, А. М.; Shershneva Anna M.; Шишацкая, Екатерина Игоревна; Shishatskaya E. I.; Сухова, К. В.; Sukhova Kristina V.
}
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20.

Short-term culture of monocytes as an in vitro evaluation system for bionanomaterials designated for medical use / E. I. Shishatskaya [et al.] // Food Chem. Toxicol. - 2016. - Vol. 96. - P. 302-308, DOI 10.1016/j.fct.2016.08.025. - Cited References: 46 . - ISSN 0278-6915

РУБ Food Science & Technology + Toxicology
Рубрики:
MAGNETIC NANOPARTICLES
   CELLULAR REDUCTION
   PROTEIN CORONA
   CELLS
   MECHANOTRANSDUCTION
   NANOMATERIALS
   LOCALIZATION
   BIOMATERIALS
   CYTOSKELETON
   ACTIVATION
Кл.слова (ненормированные):
Biocompatible biopolymers -- Polyhydroxyalkanoates -- Nanomaterials -- Nanodiamonds -- Fullerenes -- Bio-nanomaterials -- Monocytes
Аннотация: We studied the feasibility of using a short-term culture of monocytes, isolated from peripheral donor blood, to assess the biological activity of different types of bionanomaterials (BNM): biodegradable polimeric particles, fiber and film substrates of micro- and nano-dimensions, fullerenes (F) and nanodiamonds (ND), which are either currently in use and/or potentially applicable in medicine. Additionally, the effect of creating a protein corona on ND and F particles was investigated. The cellular reduction of (4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) is a well-established tool for assessing the viability/metabolic activity of cells. The scanning electron microscopy assay can detect fine changes in cell morphology. In the present study BNM have been shown to affect; in a size, chemical composition and morphological characteristics-dependent manner, the ability of monocytes to reduce MTT as well as their morphology. Moreover, the specific effects of ND and F on MTT reduction and cell morphology were exhibited in a dose-dependent manner and sensitive to the formation of surface protein corona. Our results suggest that short-term culture of monocytes is a sensitive model system for assessing the biological effects of BMPs in vitro. © 2016 Elsevier Ltd

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Держатели документа:
Siberian Federal University, Svobodnuy Av. 79, Krasnoyarsk, Russian Federation
Laboratory of Anatomy, Histology, Embryology, School of Medicine, University of Crete, Heraklion, Greece
Institute of Physics, Russian Academy of Science, Siberian Division, Akademgorodok, 50, Build. 38, Krasnoyarsk, Russian Federation
Laboratory of Toxicology, Medical School, University of Crete, Heraklion, Greece

Доп.точки доступа:
Shishatskaya, E. I.; Шишацкая, Екатерина Игоревна; Nikitovic, D.; Shabanov, A. V.; Шабанов, Александр Васильевич; Tzanakakis, G. N.; Tsatsakis, A. M.; Menzianova, N. G.
}
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