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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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Antioxidant Activity and Toxicity of Fullerenols via Bioluminescence Signaling: Role of Oxygen Substituents / E. S. Kovel [et al.] // Int. J. Mol. Sci. - 2019. - Vol. 20, Is. 9. - Ст. 2324, DOI 10.3390/ijms20092324. - Cited References: 74. - This work was supported by PRAN-32, Program: 'Nanostructures: physics, chemistry, biology, technological basis'; RFBR 18-29-19003; RFBR-Krasnoyarsk Regional Foundation 18-44-240004, Tomsk Polytechnic University CE Program. . - ISSN 1422-0067
Кл.слова (ненормированные):
bioactive compound -- fullerenol -- antioxidant activity -- toxicity -- reactive oxygen species -- bioluminescence bioassay
Аннотация: Fullerenols are nanosized water-soluble polyhydroxylated derivatives of fullerenes, a specific allotropic form of carbon, bioactive compounds, and perspective basis for drug development. Our paper analyzes the antioxidant activity and toxicity of a series of fullerenols with different number of oxygen substituents. Two groups of fullerenols were under investigation: (1) C60Oy(OH)(x), C60,70Oy(OH)(x), where x+y = 24-28 and (2) C60,70Oy(OH)(x), Fe0,5C60Oy(OH)(x), Gd@C82Oy(OH)(x), where x+y = 40-42. Bioluminescent cellular and enzymatic assays (luminous marine bacteria and their enzymatic reactions, respectively) were applied to monitor toxicity in the model fullerenol solutions and bioluminescence was applied as a signaling physiological parameter. The inhibiting concentrations of the fullerenols were determined, revealing the fullerenols' toxic effects. Antioxidant fullerenol' ability was studied in solutions of model oxidizer, 1,4-benzoquinone, and detoxification coefficients of general and oxidative types (D-GT and D-OxT) were calculated. All fullerenols produced toxic effect at high concentrations (>0.01 g L-1), while their antioxidant activity was demonstrated at low and ultralow concentrations (<0.001 g L-1). Quantitative toxic and antioxidant characteristics of the fullerenols (effective concentrations, concentration ranges, D-GT, and D-OxT) were found to depend on the number of oxygen substituents. Lower toxicity and higher antioxidant activity were determined in solutions of fullerenols with fewer oxygen substituents (x+y ⋍ 24-28). The differences in fullerenol properties were attributed to their catalytic activity due to reversible electron acceptance, radical trapping, and balance of reactive oxygen species in aqueous solutions. The results provide pharmaceutical sciences with a basis for selection of carbon nanoparticles with appropriate toxic and antioxidant characteristics. Based on the results, we recommend, to reduce the toxicity of prospective endohedral gadolinium-fullerenol preparations Gd@C82Oy(OH)(x), decreasing the number of oxygen groups to x+y ⋍ 24-28. The potential of bioluminescence methods to compare toxic and antioxidant characteristics of carbon nanostructures were demonstrated.

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Держатели документа:
Institute of Biophysics SB RAS, Krasnoyarsk, 660036, Russian Federation
Institute of Physics SB RAS, Krasnoyarsk, 660036, Russian Federation
National Research Tomsk Polytechnic University, Tomsk, 634050, Russian Federation
Institute of Physics SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Institute of Biophysics SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Kovel, E. S.; Ковель, Екатерина Сергеевна; Sachkova, A. S.; Vnukova, N. G.; Внукова, Наталья Григорьевна; Churilov, G. N.; Чурилов, Григорий Николаевич; Knyazeva, E. M.; Kudryasheva, N. S.
}
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Arc synthesis of silicon-doped heterofullerenes in plasma at atmospheric pressure / N. V. Bulina [et al.] // Fullerenes Nanotubes and Carbon Nanostructures. - 2007. - Т. 15, № 5. - С. 395-400, DOI 10.1080/15363830701512229 . - ISSN 1536-383X. - ISSN 1536-4046

ГРНТИ

РИНЦ
Держатели документа:
Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences
Max-Planck-Institut fur Kernphysik
Доп.точки доступа:
Bulina, N. V.; Булина, Наталья Васильевна; Lopatin, V. A.; Лопатин, Владислав Александрович; Vnukova, N. G.; Внукова, Наталья Григорьевна; Osipova, I. V.; Осипова, Ирина Владимировна; Churilov, G. N.; Чурилов, Григорий Николаевич; Krtschmer, W.
}
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Biological activity of fullerenols of various structure. The role of reactive oxygen species. Bioluminescent monitoring / E. S. Sushko, A. S. Sachkova, Н. Г. Внукова [et al.] // Biophysical reviews : 7th Congress of Biophysicists of Russia : conference proceedings. - 2023. - Vol. 15, Is. 5. - Ст. S7.437. - P. 1663DOI 10.1007/s12551-023-01150-w

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Публикация на русском языке Биологическая активность фуллеренолов различной структуры. Роль активных форм кислорода. Биолюминесцентный мониторинг [Текст] / Е. С. Сушко, А. С. Сачкова, Н. Г. Внукова [и др.] // VII Съезд биофизиков России : сборник научных трудов : в 2-х т. - Краснодар, 2023. - Т. 2. - С. 11

Держатели документа:
Institute of Biophysics SB RAS, FRC KSC SB RAS
Institute of Physics SB RAS, FRC KSC SB RAS
Tomsk Polytechnic University
Siberian Federal University, Krasnoyarsk
FRC KSC SB RAS, Krasnoyarsk

Доп.точки доступа:
Sushko, E. S.; Сушко, Екатерина Сергеевна; Sachkova, A. S.; Внукова, Наталья Григорьевна; Vnukova, N. G.; Чурилов, Григорий Николаевич; Churilov, G. N.; Stepin, E. A.; Kicheeva, A. G.; Kudryasheva, N. S.; Кудряшова, Надежда Степановна; Congress of Biophysicists of Russia(7 ; 2023 ; Apr. 17-23 ; Krasnodar)
}
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Carbon coated nickel nanoparticles produced in high-frequency arc plasma at ambient pressure / N. Vnukova [et al.] // J. Magn. Magn. Mater. - 2017. - Vol. 440: EURO-Asian Symposium on Trends in Magnetism (EASTMAG) (AUG 15-19, 2016, Siberian Fed Univ, Krasnoyarsk, RUSSIA). - P. 164-166, DOI 10.1016/j.jmmm.2016.12.142. - Cited References:10. - The work was supported by Ministry of Education and Science of Russia (Russian-Japanese joined project, Agreement No 14.613.21.0010, ID RFMEFI61314X0010). . - ISSN 0304-8853. - ISSN 1873-4766

РУБ Materials Science, Multidisciplinary + Physics, Condensed Matter
Рубрики:
FULLERENES
NI3C
Кл.слова (ненормированные):
Nanoparticles -- Carbon -- Nickel
Аннотация: The nickel particles with the mean size about 10-20 nm coated with carbon were extracted by the treatment of the carbon condensate with nitric and hydrochloric acids. The initial carbon condensate containing nickel nanoparticles with a graphite conversion was synthesized in the high-frequency carbon-helium arc plasma at ambient pressure with the nickel nanoparticles as a catalyst. The nickel content in the nanoparticles was 84.6 wt %. Magnetic properties of the nanoparticles are characterized by the high hysteresis and thermal stability. The sample of compacted nanoparticles is characterized by electrical resistance much higher than it in of compacted initial condensate.

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Доп.точки доступа:
Vnukova, N. G.; Внукова, Наталья Григорьевна; Dudnik, A. I.; Дудник, Александр Иванович; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Nemtsev, I. V.; Volochaev, M.; Osipova, I. V.; Осипова, Ирина Владимировна; Churilov, G. N.; Чурилов, Григорий Николаевич; Euro-Asian Symposium "Trends in MAGnetism"(6 ; 2016 ; Aug. ; 15-19 ; Krasnoyarsk); "Trends in MAGnetism", Euro-Asian Symposium(6 ; 2016 ; Aug. ; 15-19 ; Krasnoyarsk); Институт физики им. Л.В. Киренского Сибирского отделения РАН
}
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Comparative characteristics of alternating current light source with copper and silver electrodes under power samples analysis / Н. Г. Внукова, В. А. Лопатин [et al.] // Современный атомно-эмиссионный анализ и науки о земле : программа и тезисы докл. науч. семинара с междунар. участием, посвящ. 150-летию создания Кирхгофом и Бунзеном основ атом. спектроскопии, 30 июня - 4 июля 2009 г., г. Иркутск / [отв. ред.: Е. В. Шабанова, О. В. Зарубина]. - 2009. - С. 17-18 . - ISBN 978-5-94797-139-2

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

Доп.точки доступа:
Внукова, Наталья Григорьевна; Vnukova, N. G.; Лопатин, Владислав Александрович; Lopatin, V. A.; Осипова, Ирина Владимировна; Osipova, I. V.; Чурилов, Григорий Николаевич; Churilov, G. N.; "Современный атомно-эмиссионный анализ и науки о земле", семинар(2009 ; июнь-июль ; Иркутск); Российская академия наук; Сибирское отделение РАН; Иркутский научынй центр СО РАН; Институт геохимии им. А. П. Виноградова СО РАН
}
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    Comparative characteristics of metallofullerenes, clusterfullerenes with carbide and nitride synthesized under high and low pressure / G. N. Churilov [et al.] // International Conference Advanced Carbon Nanostructures : abstracts of invited lectures & contributed papers. - 2015. - Ст. P1-03. - P. 62
   Перевод заглавия: Сравнительные характеристики эндоэдральных метало, карбо, и азо фуллеренов, полученных при высоком и низком давлениях

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Доп.точки доступа:
Churilov, G. N.; Чурилов, Григорий Николаевич; Dudnik, A. I.; Дудник, Александр Иванович; Vnukova, N. G.; Внукова, Наталья Григорьевна; Dubinina, I. A.; "Advanced carbon nanostructures", International conference(12 ; 2015 ; June 29 - July 3 ; Saint-Petersburg)
}
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    Comparative characteristics of Sc2C2@C82 and C84 polymerization under high pressure / N. G. Vnukova, G. N. Churilov, Yu. M. Popov, G. A. Glushenko // 15th International Conference "Advanced carbon nanostructures" : book of abstracts. - 2021. - Fullerenes. - Ст. O4-4-10. - P. 195. - Cited References: 3. - The reported study was funded by RFBR according to the research project № 18-29-190080 . - ISBN 978-5-93634-069-7
   Перевод заглавия: Сравнительные характеристики полимеризации Sc2С2@C82 и С84 под высоким давлением

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Доп.точки доступа:
Vnukova, N. G.; Внукова, Наталья Григорьевна; Churilov, G. N.; Чурилов, Григорий Николаевич; Popov, Yu. M.; Glushenko, G. A.; Глущенко, Гарий Анатольевич; "Advanced carbon nanostructures", International conference(15 ; 2021 ; 28 June - 2 July ; Saint-Petersburg (online)); Физико-технический институт им. А.Ф. Иоффе РАН; Национальный исследовательский центр "Курчатовский институт"; Санкт-Петербургский государственный технологический институт (технический университет); Санкт-Петербургский национальный исследовательский Академический университет имени Ж.И. Алфёрова Российской академии наук
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    Comparative study of antioxidant activity of fullerenols including higher and endohedral fullerenols by inhibition of adrenaline autoxidation / I. A. Dubinina [et al.] // International Conference Advanced Carbon Nanostructures : abstracts of invited lectures & contributed papers. - 2015. - P. 63
   Перевод заглавия: Влияние количества функциональных групп фуллеренолов на их способность ингибировать аутоокисление адреналина

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Доп.точки доступа:
Dubinina, I. A.; Dudnik, A. I.; Дудник, Александр Иванович; Vnukova, N. G.; Внукова, Наталья Григорьевна; Churilov, G. N.; Чурилов, Григорий Николаевич; "Advanced carbon nanostructures", International conference(12 ; 2015 ; June 29 - July 3 ; Saint-Petersburg)
}
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10.

Controlled synthesis of fullerenes and endohedral metallofullerenes in high frequency arc discharge / G. Churilov [et al.] // Fuller. Nanotub. Carbon Nanostruct. - 2016. - Vol. 24, Is. 11. - P. 675-678, DOI 10.1080/1536383X.2016.1207062. - Cited References: 16. - The work is supported by the Ministry of Education and Science of Russia (Russian-Japanese joined project, Agreement № 14.613.21.0010, ID RFMEFI61314X0010). . - ISSN 1536-383X
Кл.слова (ненормированные):
Fullerene -- Endohedral metallofullerenes -- High frequency arc discharge -- Pressure -- Mass spectrum
Аннотация: The article presents the high-frequency arc discharge setup operating in helium atmosphere and applicable for the syntheses of carbon condensate with different dispersion and structure, along with fullerenes and endohedral metallofullerenes. It also highlights how the change of helium pressure in chamber can control the amount and composition of products in carbon condensate. The setup can be applied for the purposes of analysis, for instance in order to obtain information about the process of fullerenes and endohedral met-allofullerenes formation. Also, the fact that the yield of higher fullerenes is increasing with the pressure rise, whereas the yield of endohedral metallofullerenes is decreasing suggests different formation mechanisms. © 2016 Taylor & Francis Group, LLC.

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Держатели документа:
Kirensky Institute of Physics SB RAS, Krasnoyarsk, Russian Federation
Leibniz Institute for Solid State and Materials Research, Dresden, Germany
Siberian Federal University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Churilov, G. N.; Чурилов, Григорий Николаевич; Popov, A. A.; Vnukova, N. G.; Внукова, Наталья Григорьевна; Dudnik, A. I.; Дудник, Александр Иванович; Samoylova, N.; Glushenko, G. A.; Глущенко, Гарий Анатольевич
}
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11.

    Effects of endohedral Gd-containing fullerenols with a different number of oxygen substituents on bacterial bioluminescence / E. A. Stepin, E. S. Sushko, N. G. Vnukova [et al.] // Int. J. Mol. Sci. - 2024. - Vol. 25, Is. 2. - Ст. 708, DOI 10.3390/ijms25020708. - Cited References: 102. - This research was funded by the State Assignment of the Ministry of Science and Higher Education of the Russian Federation, project No. 0287-2021-0020, and partly supported by the Russian Science Foundation No. 23-26-10018, Krasnoyarsk Regional Science Foundation . - ISSN 1661-6596. - ISSN 1422-0067
   Перевод заглавия: Влияние эндоэдральных Gd-содержащих фуллеренолов с различным числом кислородных заместителей на биолюминесценцию бактерий
Кл.слова (ненормированные):
endohedral fullerenol -- gadolinium -- bioluminescence -- bacterial bioassay -- toxicity -- enzymatic bioassay -- reactive oxygen species -- density functional tight binding method -- fourier-transform infrared spectroscopy
Аннотация: Gadolinium (Gd)-containing fullerenols are perspective agents for magnetic resonance imaging and cancer research. They combine the unique paramagnetic properties of Gd with solubility in water, low toxicity and antiradical activity of fullerenols. We compared the bioeffects of two Gd-containing fullerenols with a different number of oxygen groups—20 and 42: Gd@C82O20H14 and Gd@C82O42H32. The bioluminescent bacteria-based assay was applied to monitor the toxicity of fullerenols, bioluminescence was applied as a signal physiological parameter, and bacterial enzyme-based assay was used to evaluate the fullerenol effects on enzymatic intracellular processes. Chemiluminescence luminol assay was applied to monitor the content of reactive oxygen species (ROS) in bacterial and enzymatic media. It was shown that Gd@C82O42H32 and Gd@C82O20H14 inhibited bacterial bioluminescence at >10?1 and >10?2 gL?1, respectively, revealing a lower toxicity of Gd@C82O42H32. Low-concentration (10?3–10?1 gL?1) bacterial bioluminescence activation by Gd@C82O42H32 was observed, while this activation was not found under exposure to Gd@C82O20H14. Additional carboxyl groups in the structure of Gd@C82O42H32 were determined by infrared spectroscopy and confirmed by quantum chemical calculations. The groups were supposed to endow Gd@C82O42H32 with higher penetration ability through the cellular membrane, activation ability, lower toxicity, balancing of the ROS content in the bacterial suspensions, and lower aggregation in aqueous media.

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Держатели документа:
Biophysics Department, School of Fundamental Biology and Biotechnology, Siberian Federal University, 660041 Krasnoyarsk, Russia
Institute of Biophysics SB RAS, FRC KSC SB RAS, 660036 Krasnoyarsk, Russia
Institute of Physics SB RAS, FRC KSC SB RAS, 660036 Krasnoyarsk, Russia
Department of Solid State Physics and Nanotechnology, School of Engineering Physics and Radioelectronics, Siberian Federal University, 660074 Krasnoyarsk, Russia
Department of Physical and Inorganic Chemistry, School of Non-Ferrous Metals and Materials Science, Siberian Federal University, 660025 Krasnoyarsk, Russia
Laboratory for Digital Controlled Drugs and Theranostics, FRC KSC SB RAS, 660036 Krasnoyarsk, Russia

Доп.точки доступа:
Stepin, E. A.; Sushko, E. S.; Сушко, Екатерина Сергеевна; Vnukova, N. G.; Внукова, Наталья Григорьевна; Churilov, G. N.; Чурилов, Григорий Николаевич; Rogova, A. V.; Tomilin, F. N.; Томилин, Феликс Николаевич; Kudryasheva, N. S.
}
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12.

Electrical Parameters of Materials Based on Modified Endohedral Metallofullerenes / G. N. Churilov [et al.] // Phys. Solid State. - 2019. - Vol. 61, Is. 3. - P. 379-382, DOI 10.1134/S1063783419030089. - Cited References: 19 . - ISSN 1063-7834
Аннотация: The film based on hydroxylated endohedral metallofullerenes with Y has been investigated. It is shown that the obtained film is an ion conductor and can behave as a ferroelectric.

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Публикация на русском языке Электрические параметры материалов на основе модифицированных эндоэдральных металлофуллеренов [Текст] / Г. Н. Чурилов [и др.] // Физ. тверд. тела. - 2019. - Т. 61 Вып. 3. - С. 510-513

Держатели документа:
Kirensky Institute of Physics, Krasnoyarsk Scientific Center,Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Churilov, G. N.; Чурилов, Григорий Николаевич; Dudnik, A. I.; Дудник, Александр Иванович; Drokin, N. A.; Дрокин, Николай Александрович; Vnukova, N. G.; Внукова, Наталья Григорьевна; Bondarev, V. S.; Бондарев, Виталий Сергеевич; Elesina, V. I.; Елесина, Виктория Игоревна
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13.

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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14.

Electrophysical properties of hydroxylated endohedral metallofullerene with gadolinium / A. I. Dudnik [et al.] // J. Phys. Chem. Solids. - 2019. - Vol. 135. - Ст. 109094, DOI 10.1016/j.jpcs.2019.109094. - Cited References: 35. - The reported study was funded by RFBR according to the research project No 18-29-19003. . - ISSN 0022-3697
Кл.слова (ненормированные):
Endohedral metallofullerene -- Fullerenol -- Impedance -- Dielectric permittivity -- Ionic and proton conductivity -- Dielectric hysteresis -- Polarizability
Аннотация: The paper presents the results of experimental measurements of constitutive and electrophysical properties in hydroxylated endohedral metallofullerene with gadolinium sample. We extracted endohedral metallofullerene from carbon condensate, synthesized in high-frequency arc discharge plasma. Later hydroxyl groups were added. Via methods of infrared and x-ray photoelectronic spectroscopy, it was established that the molecules of hydroxylated endohedral metallofullerene have the Gd@C82Ox(OH)y, x + y=(40–42) composition. The method of measuring the electrical impedance in the frequency range from 100 Hz to 100 MHz shows that the resulting hydroxylated fullerene is an ion conductor. The measured frequency dependences of the dielectric permittivity and conductivity of hydroxylated fullerene are explained based on the assumption of an inhomogeneous distribution of electric charges in the material volume. Dielectric-hysteresis loops in the frequency range of 25 Hz–1 MHz and temperature range of 80–300 K, and volt-ampere characteristics were measured. The obtained results imply the appearance of residual polarization induced by the electric field in hydroxylated fullerene. However, the constant dipole moment is absent. © 2019

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Institute of Chemistry and Chemical Technology SB RAS, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Dudnik, A. I.; Дудник, Александр Иванович; Vnukova, N. G.; Внукова, Наталья Григорьевна; Drokin, N. A.; Дрокин, Николай Александрович; Bondarev, V. S.; Бондарев, Виталий Сергеевич; Shestakov, N. P.; Шестаков, Николай Петрович; Tomashevich, Y. V.; Churilov, G. N.; Чурилов, Григорий Николаевич
}
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15.

Emission spectroscopy as the main control method for carbon nanoparticles synthesis / I. V. Osipova, V. A. Lopatin [et al.] // 9th Biennial International Workshop "Fullerenes and Atomic Clusters" (IWFAC 2009) : July 6-10, 2009, St Petersburg, Russia : abstracts. - 2009. - Ст. P6.17. - P177

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Доп.точки доступа:
Osipova, I. V.; Осипова, Ирина Владимировна; Lopatin, V. A.; Лопатин, Владислав Александрович; Vnukova, N. G.; Внукова, Наталья Григорьевна; Novikov, P. V.; Новиков, Павел Вадимович; Churilov, G. N.; Чурилов, Григорий Николаевич; "Fullerenes and Atomic Clusters", Biennial International Workshop(9 ; 2009 ; JUL)
}
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16.

Endohedral Gd-containing fullerenol: Toxicity, antioxidant activity and regulation of reactive oxygen species in cellular and enzymatic systems / E. S. Sushko, N. G. Vnukova, G. N. Churilov, N. S. Kudryasheva // Int. J. Mol. Sci. - 2022. - Vol. 23, Is. 9. - Ст. 5152, DOI 10.3390/ijms23095152. - Cited References: 117. - This research was funded by Russian Foundation for Basic Research, N18-29-19003; Russian Foundation for Basic Research, Krasnoyarsk Territory and Krasnoyarsk Regional Fund of Science, N20-44-243001; and partly supported by the Program of the Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing, Fundamental Study 2020-2025 (Russia) . - ISSN 1661-6596
Кл.слова (ненормированные):
endohedral fullerenol -- gadolinium -- toxicity -- oxidative stress -- antioxidant activity -- reactive oxygen species -- bioluminescence bioassay -- hormesis
Аннотация: The Gd-containing metallofullerene derivatives are perspective magnetic resonance imaging contrast agents. We studied the bioeffects of a water-soluble fullerene derivative, gadolinium-endohedral fullerenol, with 40–42 oxygen groups (Gd@Fln). Bioluminescent cellular and enzymatic assays were applied to monitor toxicity and antioxidant activity of Gd@Fln in model solutions; bioluminescence was applied as a signaling physiological parameter. The Gd@Fln inhibited bioluminescence at high concentrations (>2·10−1 gL−1), revealing lower toxicity as compared to the previously studied fullerenols. Efficient activation of bioluminescence (up to almost 100%) and consumption of reactive oxygen species (ROS) in bacterial suspension were observed under low-concentration exposure to Gd@Fln (10−3–2·10−1 gL−1). Antioxidant capability of Gd@Fln was studied under conditions of model oxidative stress (i.e., solutions of model organic and inorganic oxidizers); antioxidant coefficients of Gd@Fln were determined at different concentrations and times of exposure. Contents of ROS were evaluated and correlations with toxicity/antioxidant coefficients were determined. The bioeffects of Gd@Fln were explained by hydrophobic interactions, electron affinity, and disturbing of ROS balance in the bioluminescence systems. The results contribute to understanding the molecular mechanism of “hormetic” cellular responses. Advantages of the bioluminescence assays to compare bioeffects of fullerenols based on their structural characteristics were demonstrated.

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Держатели документа:
Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS, Krasnoyarsk, 660036, Russian Federation
Institute of Physics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Sushko, E. S.; Сушко, Екатерина Сергеевна; Vnukova, N. G.; Внукова, Наталья Григорьевна; Churilov, G. N.; Чурилов, Григорий Николаевич; Kudryasheva, N. S.
}
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17.

Enrichment of a fullerene mixture with endohedral metallofullerenes: methodology and evaluation / N. G. Vnukova, N. S. Nikolaev, L. S. Bartseva [et al.] // Fuller. Nanotub. Carbon Nanostructures. - 2024, DOI 10.1080/1536383X.2024.2338524. - Cited References: 46 . - Article in press. - ISSN 1536-383X. - ISSN 1536-4046
Кл.слова (ненормированные):
endohedral metallofullerene -- enrichment -- Lewis acids -- high performance liquid chromatography -- numerical integration of the spectra
Аннотация: A fullerene mixture was enriched with endohedral metallofullerenes (EMF) using Lewis acid (TiCl4), which took 22 min, whereas the standard method requires about 8 h. An algorithm for assessing small-area chromatographic peaks has been proposed, which has improved the accuracy of determination. For example, the area of the C84 peak was 4.24% using the developed program, while the use of chromatograph software estimated the area of this peak to be 1.78%.

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Держатели документа:
Kirensky Institute of Physics, FSBSI "Federal Research Center "Krasnoyarsk Science Center SB RAS", Krasnoyarsk, Russia
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk, Russia
Institute of Non-Ferrous Metals Department of Organic and Analytical Chemistry, Siberian Federal University, Krasnoyarsk, Russia

Доп.точки доступа:
Vnukova, N. G.; Внукова, Наталья Григорьевна; Nikolaev, N. S.; Николаев, Никита Сергеевич; Bartseva, L. S.; Барцева, Любовь Сергеевна; Kastiuk, M. R.; Кастюк, Мария Романовна; Elesina, V. I.; Елесина, Виктория Игоревна; Isakova, V. G.; Исакова, Виктория Гавриловна; Churilov, G. N.; Чурилов, Григорий Николаевич
}
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18.

Express analysis of endohedral fullerenes amount contained at fullerene mixture / G. N. Churilov [et al.] // Наносистемы: физ., хим., матем. - 2016. - Т. 7, № 1. - С. 140-145 ; Nanosystems: phys., chem., mathem., DOI 10.17586/2220-8054-2016-7-1-140-145. - Библиогр.: 7. - The work was supported by the Ministry of Education and Science of Russia (Russian-Japanese joined project, Agreement N 14.613.21.0010, ID RFMEFI61314X0010). . - ISSN 2220-8054
Кл.слова (ненормированные):
endohedral fullerene -- atom emission spectroscopy -- quantitative assessment
Аннотация: This paper describes the technique for rapid determination of endohedral metallofullerene (EMF) content in a fullerene mixture (FM). The methods of mass spectroscopy and atom emission element analysis underlay at the technique. By the method of mass spectroscopy, the type of EMF with atom-guest is registered and by the method of emission spectroscopy, the quantity of that element which is contained in the FM is determined. The technique may be used for rapid determination of EMF weight percents in the FM in the specific case if only one type of EMF is present, and of EMF average content if there are different types of EMF are present. The technique is demonstrated through the example of analysis of FM with Y, which was extracted from the carbon condensate (CC) by different solvents (C5H5N and CS2).

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Доп.точки доступа:
Churilov, G. N.; Чурилов, Григорий Николаевич; Popov, A. A.; Gulyaeva, U. E.; Гуляева, Ульяна Евгеньевна; Samoylova, N. A.; Vnukova, N. G.; Внукова, Наталья Григорьевна; Kolonenko, A. L.; Колоненко, Андрей Леонидович; Isakova, V. G.; Исакова, Виктория Гавриловна; Dudnik, A. I.; Дудник, Александр Иванович; Koravanets, V. S.

}
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19.

Feature of the endohedral metallofullerene Y@C82 and Gd@C82 polymerization under high pressure / V. V. Zhukov, S. V. Erohin, V. D. Churkin [et al.] // J. Phys. Chem. C. - 2022. - Vol. 126, Is. 40. - P. 17366-17373, DOI 10.1021/acs.jpcc.2c05139. - Cited References: 35. - The authors gratefully acknowledge the financial support of the RFBR (project identifier: 18-29-19080). V.D.C. acknowledges the support of the RFBR (project identifier: 20-32-90038). M.Y.P. acknowledges the support of the Ministry of Science and Higher Education of the Russian Federation in the framework of the State Task (project code 0718-2020-0037) for Raman study, interpretation, and discussion of obtained results and Russian Science Foundation (project #20-12-00097) for investigation of fullerite mechanical properties. V.V.Z., S.V.E., and P.B.S. acknowledge the support of the Ministry of Science and Higher Education of the Russian Federation in the framework of the strategic academic leadership program “Priority 2030” (no. K6-2022-041). The calculations were performed at the supercomputer cluster provided by the Materials Modeling and Development Laboratory at NUST “MISIS” and the Joint Supercomputer Center of the Russian Academy of Sciences. The authors thank the staff of the Information Technology Department of the Moscow Institute of Physics and Technology and express their gratitude to the Data Center Group for their help in performing calculations . - ISSN 1932-7447
Кл.слова (ненормированные):
Fullerenes -- Diamond anvil cell technique -- Endohedral metallofullerenes -- Experimental approaches -- Fullerene cages -- Gadolinia -- High bulk modulus -- High pressure -- Low pressures -- Polymerized material -- Theoretical approach -- Polymerization
Аннотация: In the present work, the polymerization of endohedral metallofullerenes (EMFs) with gadolinium (Gd@C82) and yttrium atoms (Y@C82) at high pressures achieved using the shear diamond anvil cell technique is studied using both theoretical and experimental approaches. It is found that in contrast to pure fullerenes, EMF polymerization starts at lower pressures with similar behavior for both metals inside the fullerene cage. EMF polymerization occurs smoothly and finally leads to a significant increase in the number of interfullerene bonds at pressures higher than ∼20 GPa. Finally, a high bulk modulus of both EMF-polymerized materials is obtained using Raman spectra.

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Держатели документа:
Technological Institute for Superhard and Novel Carbon Materials, Troitsk, Moscow, 108840, Russian Federation
National University of Science and Technology MISiS, Moscow, 119049, Russian Federation
Moscow Institute of Physics and Technology, Dolgoprudniy, Moscow, 141701, Russian Federation
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, 119334, Russian Federation
Institute of Chemistry and Chemical Technology, The Siberian Branch of the RAS, Federal Research Center KSC Siberian Branch Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Zhukov, V. V.; Erohin, S. V.; Churkin, V. D.; Vnukova, N. G.; Внукова, Наталья Григорьевна; Antipina, L. Y.; Elesina, V. I.; Елесина, Виктория Игоревна; Visotin, M. A.; Высотин, Максим Александрович; Tomashevich, Y. V.; Popov, M. Y.; Churilov, G. N.; Чурилов, Григорий Николаевич; Sorokin, P. B.; Fedorov, A. S.; Федоров, Александр Семенович
}
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20.

    Filtration process combined with mechanical action, as a method for efficient extraction of endohedral metallofullerenes from carbon soot / V. I. Elesina [et al.] // Fuller. Nanotub. Carbon Nanostruct. - 2019. - Vol. 27, Is. 10. - P. 803-807, DOI 10.1080/1536383X.2019.1648439. - Cited References: 22 . - ISSN 1536-383X
   Перевод заглавия: Процесс фильтрации, совмещенный с механическим воздействием, как метод эффективного выделения эндоэдральных металлофуллеренов из углеродной сажи
Кл.слова (ненормированные):
Fullerenes -- solvent extraction -- mechanical extraction -- Soxhlet -- turbulent flow
Аннотация: The paper presents results of fullerenes and endohedral metallofullerenes extracts studies, isolated from the graphite rods carbon soot spray, and containing Y2O3 in a high frequency arc discharge. Two ways of extraction were applied and compared–(1) the classic method of Soxhlet extraction, and (2) the one developed by our team–extraction based on mechanical action combined with filtration. To implement the method, we used a laboratory version of installation, embodying technical solutions for rapid extraction. Chromatographic and mass spectrometry studies of fullerene extracts obtained by these methods revealed that by combining mechanical action with simultaneous filtration, we can significantly intensify and reduce the process of extracting fullerenes and endohedral metallofullerenes compared to the Soxhlet extraction method. This is especially evident in the release of endohedral metallofullerenes. Our method allows to reduce the release time of fullerenes from 10 g of carbon soot on laboratory installation up to 15 minutes, against the Soxhlet extraction method taking 18 hours. Whilst, the total number of fullerenes extracted by both methods almost coincides (the extraction method using mechanical action allowed us to extract 0.2-0.4 wt. % more), the composition of the isolated fullerene mixtures is different. The relative content of higher fullerenes and endohedral metallofullerenes exceeds when the mechanical action-based extraction method applied. © 2019, © 2019 Taylor & Francis Group, LLC.

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Держатели документа:
FSBSI “Federal Research Center “Krasnoyarsk Science Center SB RAS”, Krasnoyarsk, Russian Federation
Siberian Federal University, Institute of Engineering Physics and Radio Electronics, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Elesina, V. I.; Елесина, Виктория Игоревна; Churilov, G. N.; Чурилов, Григорий Николаевич; Vnukova, N. G.; Внукова, Наталья Григорьевна; Dudnik, A. I.; Дудник, Александр Иванович; Osipova, I. V.; Осипова, Ирина Владимировна
}
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