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1.
Collective Spin Glass
State in Nanoscale Particles of Ferrihydrite / S. V. Stolyar, R. N. Yaroslavtsev, V. P. Ladygina [et al.]> //
Semiconductors. - 2020. -
Vol. 54
,
Is. 12
. - P. 1710-1712
DOI
10.1134/S1063782620120362. - Cited References: 16. - This work was supported by the Russian Foundation for Basic Research, the Government of the Krasnoyarsk Territory, the Krasnoyarsk Regional Fund for the Support of Scientific and Technical Activities (project no. 19-42-240012 r_a “Magnetic resonance in ferrihydrite
nanoparticles
: Effects associated with the “core–shell” structure). This work was supported by a grant from the President of the Russian Federation for state support of young Russian scientists – candidates of sciences no. MK-1263.2020.3
Кл.слова (ненормированные):
nanoparticles
--
ferrihydrite
--
magnetic anisotropy
--
magnetic resonance
Аннотация:
Ferromagnetic resonance was used to study three types of ferrihydrite
nanoparticles
:
nanoparticles
formed as a result of the cultivation of microorganisms Klebsiella oxytoca; chemically prepared ferrihydrite
nanoparticles
; chemically prepared ferrihydrite
nanoparticles
doped with Cu. It is established from the ferromagnetic resonance data that the frequency-field dependence (in the temperature range ТP ‹ T ‹ T*) is described by the expression: 2πν/γ ⁼ НR + HA(T = 0)(1 – T/Т*), where γ is the gyromagnetic ratio, HR is the resonance field. The induced anisotropy HA is due to the spin-glass state of the near-surface regions. TP temperature characterizes the energy of the interparticle interaction of
nanoparticles
.
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Держатели документа:
Kirensky Institute of Physics, SB Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Krasnoyarsk Scientific Center, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Доп.точки доступа:
Stolyar, S. V.; Столяр, Сергей Викторович; Yaroslavtsev, R. N.; Ярославцев, Роман Николаевич; Ladygina, V. P.; Balaev, D. A.; Балаев, Дмитрий Александрович; Pankrats, A. I.; Панкрац, Анатолий Иванович; Iskhakov, R. S.; Исхаков, Рауф Садыкович; International Symposium “Nanostructures: Physics and Technology”(28th ; Sept 28 - Oct 2, 2020 ; Minsk, Republic of Belarus)
}
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2.
Synthesis, Properties, and
in vivo Testing of Biogenic Ferrihydrite
Nanoparticles
/ S. V. Stolyar, V. P. Ladygina, A. V. Boldyreva [et al.]> // Bull. Russ. Acad. Sci. Phys. - 2020. -
Vol. 84
,
Is. 11
. - P. 1366-1369,
DOI
10.3103/S106287382011026X. - Cited References: 12. - The study was supported by the Russian Foundation for Basic Research, the Government of the Krasnoyarsk krai, the Krasnoyarsk Regional Fund for the Support of Scientific and Technical Activities (project no. 19-42-240012 r_a “Magnetic Resonance in Ferrihydrite
Nanoparticles
: Effects Associated with the Core–Shell Structure”), and the grant of the President of the Russian Federation for state support of young Russian scientists—Candidates of sciences no. MK-1263.2020.3 . - ISSN 1062-8738
Кл.слова (ненормированные):
Bacteria
--
Nanoparticles
--
Sols
--
Ferrihydrites
--
Functional activities
--
In-vivo
--
Klebsiella oxytoca
--
Laboratory animals
--
Morphological description
Аннотация:
A sol containing biogenic ferrihydrite
nanoparticles
is obtained by cultivating Klebsiella oxytoca microorganisms. Data on the physical properties of the biogenic ferrihydrite and its effect on the organism of laboratory animals are obtained using a model of experimental hemolytic anemia, according to indicators of the functional activity of erythrocytes and morphological descriptions of organs.
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Публикация на русском языке
Синтез, свойства и тестирование биогенных наночастиц ферригидрита in vivo [Текст] / С. В. Столяр, В. П. Ладыгина, А. В. Болдырева [и др.] // Изв. РАН. Сер. физич. - 2020. - Т. 84 № 11. - С. 1601-1604
Держатели документа:
Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Astrakhan State University, Astrakhan, 414056, Russian Federation
Al-Qasim Green University, College of Biotechnology, Babylon, 00964, Iraq
Доп.точки доступа:
Stolyar, S. V.; Столяр, Сергей Викторович; Ladygina, V. P.; Boldyreva, A. V.; Kolenchukova, O. A.; Vorotynov, A. M.; Воротынов, Александр Михайлович; Bairmani, M. S.; Yaroslavtsev, R. N.; Ярославцев, Роман Николаевич; Iskhakov, R. S.; Исхаков, Рауф Садыкович
}
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3.
Magnetic properties of
iron oxide
nanoparticles
to create aptamer bionanoconjugates / A. Е. Sokolov, V. N. Zabluda, A. V. Sherepa [et al.]> //
Molecular Therapy - Nucleic Acids : book of abstracts of the 1st Int. conf. "Aptamers in Russia 2019". - 2019. -
Vol. 17
,
Suppl. 1
. - P. 12
Материалы конференции
Доп.точки доступа:
Sokolov, A. Е.; Соколов, Алексей Эдуардович; Zabluda, V. N.; Заблуда, Владимир Николаевич; Sherepa, A. V.; Knyazev, Yu. V.; Князев, Юрий Владимирович; Volochaev, M. N.; Волочаев, Михаил Николаевич; Kurilina, A.; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Goncharova, D. A.; Shabalina, A.; Шабалина Анастасия; Svetlichnyi, V.; Светличный В.; Aptamers in Russia, international conference(1 ; 2019 ; Aug. 27-30 ; Krasnoyarsk)
}
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4.
Magnetic
Nanoparticles
for
Extracting DNA from Blood Cells / A. V. Komina, R. N. Yaroslavtsev, Y. V. Gerasimova [et al.]> // Bull. Russ. Acad. Sci. Phys. - 2020. -
Vol. 84
,
Is. 11
. - P. 1362-1365,
DOI
10.3103/S1062873820110155. - Cited References: 15 . - ISSN 1062-8738
Кл.слова (ненормированные):
Blood cells
--
Extraction process
--
Genomic DNA
--
Iron
nanoparticles
--
Magnetic particle
Аннотация:
A technique for extracting DNA from blood cells using magnetic particles offers the advantage of saving time and prospects of automating the extraction process. A way of obtaining magnetic iron
nanoparticles
for extracting DNA from blood cells is developed. Magnetic
nanoparticles
with characteristics suitable for extracting genomic DNA from leukocytes are obtained and investigated.
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Публикация на русском языке
Магнитные частицы для выделения ДНК из клеток крови [Текст] / А. В. Комина, Р. Н. Ярославцев, Ю. В. Герасимова [и др.] // Изв. РАН. Сер. физич. - 2020. - Т. 84 № 11. - С. 1597-1600
Держатели документа:
Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
National Research Center for Hematology, Krasnoyarsk Branch, Krasnoyarsk, 660036, Russian Federation
Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Astrakhan State University, Astrakhan, 414056, Russian Federation
Al-Qasim Green University, College of Biotechnology, Babylon, 00964, Iraq
Доп.точки доступа:
Komina, A. V.; Yaroslavtsev, R. N.; Ярославцев, Роман Николаевич; Gerasimova, Yu. V.; Герасимова, Юлия Валентиновна; Stolyar, S. V.; Столяр, Сергей Викторович; Olkhovsky, I. A.; Bairmani, M. S.
}
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5.
Study of plasmons
and thermoelectric properties of
nanoparticles
connected by thin conductive bridges / A. S. Fedorov, P. O. Krasnov, M. A. Visotin, H. Ågren> //
The Fifth Asian School-Conference on Physics and Technology of Nanostructured Materials : Proceedings. - VLadivostok : Dalnauka Publishing, 2020. - Ст. VI.30.03o. - P. 168. - This study was supported by the Russian Science Foundation, project no. 16-13-00060. . - ISBN 978-5-8044-1698-1
Материалы конференции
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Доп.точки доступа:
Fedorov, A. S.; Федоров, Александр Семенович; Krasnov, P.O.; Visotin, M. A.; Высотин, Максим Александрович; Ågren, H.; Asian School-Conference on Physics and Technology of Nanostructured Materials(5 ; 2020 ; 30 Jul - 3 Aug ; Vladivostok); Азиатская школа-конференция по физике и технологии наноструктурированных материалов(5 ; 2013 ; 30 июля - 3 авг. ; Владивосток)
}
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6.
Influence of Magnetic
Nanoparticles
on Cells of Ehrlich Ascites Carcinoma / S. Stolyar, O. Kryukova, R. Yaroslavtsev, and N. Latyshev> //
65th Annual conference on мagnetism and мagnetic мaterials (MMM-2020) : abstract book. - 2020. - Ст. Q5-07. - P. 530. - Cited References: 1
Перевод заглавия:
Высоко-индукционные пленки FeCo: Зеленый синтез и магнитные свойства
Материалы конференции
, , ,
Читать в сети ИФ
Доп.точки доступа:
Stolyar, S. V.; Столяр, Сергей Викторович; Kryukova, O. V.; Yaroslavtsev, R. N.; Ярославцев, Роман Николаевич; Latyshev, N. V.; Annual conference on мagnetism and мagnetic мaterials(65 ; 2020 ; 2-6 Nov. ; Virtual Conference)
}
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7.
Magnetic Hysteresis of
Blocked Ferrihydrite
Nanoparticles
/ S. Komogortsev, D. Balaev, A. Krasikov, S. Stolyar, R. Yaroslavtsev, V. Ladygina and R. Iskhakov> //
65th Annual conference on мagnetism and мagnetic мaterials (MMM-2020) : abstract book. - 2020. - Ст. C4-02. - P. 74
Перевод заглавия:
Высоко-индукционные пленки FeCo: Зеленый синтез и магнитные свойства
Материалы конференции
, , ,
Читать в сети ИФ
Доп.точки доступа:
Komogortsev, S. V.; Комогорцев, Сергей Викторович; Balaev, D. A.; Балаев, Дмитрий Александрович; Krasikov, A. A.; Красиков, Александр Александрович; Stolyar, S. V.; Столяр, Сергей Викторович; Yaroslavtsev, R. N.; Ярославцев, Роман Николаевич; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Annual conference on мagnetism and мagnetic мaterials(65 ; 2020 ; 2-6 Nov. ; Virtual Conference)
}
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8.
Magnetic hysteresis of
blocked ferrihydrite
nanoparticles
/ S. V. Komogortsev, D. A. Balaev, A. A. Krasikov [et al.]> // AIP Adv. - 2021. -
Vol. 11
,
Is. 1
. - Ст. 015329,
DOI
10.1063/9.0000111. - Cited References: 23. - The magnetic measurements were partially carried out on the equipment of the Krasnoyarsk Regional Center for Collective Use, Krasnoyarsk Science Center, Siberian Branch, Russian Academy of Sciences. This study was supported by the Council of the President of the Russian Federation for State Support of Young Scientists and Leading Scientific Schools (project no. MK-1263.2020.3) . - ISSN 2158-3226
Кл.слова (ненормированные):
Hysteresis
--
Hysteresis loops
--
Magnetic anisotropy
--
Magnetic materials
--
Nanoparticles
--
Anisotropy field
--
Ferrihydrites
--
Field amplitudes
--
Magnetic anisotropy field
--
Minor hysteresis loop
--
Stoner-Wohlfarth model
--
Uniaxial anisotropy
--
Nanomagnetics
Аннотация:
Using minor hysteresis loops in the Stoner-Wohlfarth model allows describing the experimental behavior of the coercive force of minor hysteresis loops in ferrihydrite
nanoparticles
with a change in the field amplitude. The description allows estimating the parameters of the distribution of the magnetic anisotropy field in
nanoparticles
. The best agreement of the anisotropy fields estimated by different approaches is achieved for the assumption of uniaxial anisotropy in ferrihydrite
nanoparticles
.
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Держатели документа:
Kirensky Institute of Physics, Russian Academy of Sciences, Siberian Branch, Krasnoyarsk, 660036, Russian Federation
Krasnoyarsk Science Center, Russian Academy of Sciences, Siberian Branch, Krasnoyarsk, 660036, Russian Federation
Доп.точки доступа:
Komogortsev, S. V.; Комогорцев, Сергей Викторович; Balaev, D. A.; Балаев, Дмитрий Александрович; Krasikov, A. A.; Красиков, Александр Александрович; Stolyar, S. V.; Yaroslavtsev, R. N.; Ladygina, V. P.; Iskhakov, R. S.; Исхаков, Рауф Садыкович
}
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9.
Square plate shaped
magnetite nanocrystals / S. V. Komogortsev, S. V. Stolyar, L. A. Chekanova [et al.]> // J. Magn. Magn. Mater. - 2021. -
Vol. 527
. - Ст. 167730,
DOI
10.1016/j.jmmm.2021.167730. - Cited References: 42. - This work was supported by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research projects No. 20-42-240001 and 20-42-242902 and by the Council of the President of the Russian Federation for State Support of Young Scientists and Leading Scientific Schools (project no. MK-1263.2020.3). We are grateful to the Center of collective use of FRC KSC SB RAS for the provided equipment . - ISSN 0304-8853
Кл.слова (ненормированные):
Magnetite
--
Nanoparticles
--
Magnetic anisotropy
Аннотация:
Square plate shaped magnetite nanocrystals have been synthesized by chemical precipitation from solution using arabinogalactan. A high crystal quality was observed in the plate plane while, across the plate, there is some stratification. The magnetic hysteresis in such particles is determined by the bulk magnetocrystalline anisotropy, plate shape anisotropy, and surface magnetic anisotropy. It is shown using the micromagnetic simulation that the ferromagnetic square nanoplates exhibit the extraordinary magnetization switching anisotropy, which should be taken into account for understanding the hysteretic properties of the particles.
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Держатели документа:
Krasnoyarsk Scientific Center, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Komogortsev, S. V.; Комогорцев, Сергей Викторович; Stolyar, S. V.; Столяр, Сергей Викторович; Chekanova, L. A.; Чеканова, Лидия Александровна; Yaroslavtsev, R. N.; Ярославцев, Роман Николаевич; Bayukov, O. A.; Баюков, Олег Артемьевич; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Volochaev, M. N.; Волочаев, Михаил Николаевич; Eroshenko, P. E.; Ерошенко, П. Е.; Iskhakov, R. S.; Исхаков, Рауф Садыкович
}
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10.
Co/multi-walled carbon nanotubes/polyethylene
composites for microwave absorption: Tuning the effectiveness of electromagnetic shielding by varying the components ratio / M. A. Kazakova, N. V. Semikolenova, E. Y. Korovin [et al.]> // Compos. Sci. Technol. - 2021. -
Vol. 207
. - Ст. 108731,
DOI
10.1016/j.compscitech.2021.108731. - Cited References: 45. - This work was supported by the Ministry of Science and Higher Education of the Russian Federation within the state assignment for Boreskov Institute of Catalysis (project # АААА-А21-121011390054-1) . - ISSN 0266-3538
Кл.слова (ненормированные):
Polymer composites
--
Multi-walled carbon nanotubes
--
Co
nanoparticles
--
Hybrid structures
--
Electromagnetic interference shielding
Аннотация:
We present novel polyethylene (PE) composites for electromagnetic interference (EMI) shielding application. They are based on cobalt modified multi-walled carbon nanotubes (MWCNTs) produced via in situ polymerization of ethylene, with the Ti-Ziegler–Natta catalyst preliminarily immobilized on Co/MWCNT hybrids. The electromagnetic properties of the composites were tuned by varying the filler loading and Co:MWCNT ratio. The microstructure of the composites and electromagnetic absorption process were carefully characterized by transmission and scanning electron microscopy, X-ray diffraction, vibrating sample magnetometry, ferromagnetic resonance and vector network analysis. The electromagnetic wave absorbing properties of the nanocomposite were investigated in the 10 MHz−18 GHz frequency range revealing that the EMI absorption properties can be tuned by varying the Co:MWCNT weight ratio in the filler. Interestingly, the Co/MWCNT-PE composite with a total filler and Co loading of only 12 and 1.7 wt%, respectively, showed extremely high reflection loss (RL) of −55 dB. More importantly, an effective bandwidth of 12.8–17.8 GHz (RL below −10 dB) was achieved for a matching thickness of only 1.5 mm. The specific RL value (RL/filler loading) of the composite was superior in comparison with the previously reported nanostructured carbon materials. The highly effective absorbing properties of Co/MWCNT-PE composites are explained primarily by the unprecedented uniform filler distribution in the polyethylene as well as by the synergistic effect of MWCNTs and Co
nanoparticles
. This approach thus offered an effective strategy to design cost-effective, lightweight and flexible EMI shielding materials with tunable dielectric and magnetic performance.
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Держатели документа:
Boreskov Institute of Catalysis, SB RAS, Lavrentieva 5, Novosibirsk, 630090, Russian Federation
National Research Tomsk State University, Lenin Ave. 36, Tomsk, 634050, Russian Federation
Kirensky Institute of Physics, SB RAS, Akademgorodok St. 50, Krasnoyarsk, 660036, Russian Federation
TOTAL Research and Technology Feluy (TRTF), Zone Industrielle C, Feluy, 7181, Belgium
Soft Matter Science and Engineering (SIMM), UMR CNRS 7615, ESPCI Paris, Universite PSL, Sorbonne Universite, Paris, 75005, France
Доп.точки доступа:
Kazakova, M. A.; Semikolenova, N. V.; Korovin, E. Y.; Zhuravlev, V. A.; Selyutin, A. G.; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Moseenkov, S. I.; Andreev, A. S.; Lapina, O. B.; Suslyaev, V. I.; Matsko, M. A.; Zakharov, V. A.; Lacaillerie, J. -B.D.D.
}
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11.
Influence of magnetic
nanoparticles
on cells of Ehrlich ascites carcinoma / S. V. Stolyar, O. V. Kryukova, R. N. Yaroslavtsev [et al.]> // AIP Adv. - 2021. -
Vol. 11
,
Is. 1
. - Ст. 015019,
DOI
10.1063/9.0000165. - Cited References: 22. - The electron microscopy and magnetic resonance study was carried out on the equipment of the Krasnoyarsk Territorial Center for Collective Use, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences. This work was supported by the Council of the President of the Russian Federation for State Support of Young Scientists and Leading Scientific Schools (project no. MK-1263.2020.3). The research was funded by RFBR, Krasnoyarsk Territory and Krasnoyarsk Regional Fund of Science, project number 20-42-242902 . - ISSN 2158-3226
Кл.слова (ненормированные):
High resolution transmission electron microscopy
--
Iron compounds
--
Arabinogalactan
--
Ehrlich ascites carcinoma
--
EPR signals
--
Iron complex
--
NO molecule
--
Ssbauer spectroscopies
--
Magnetic
nanoparticles
Аннотация:
The effect of magnetic
nanoparticles
coated with arabinogalactan on the viability of Ehrlich ascites carcinoma (EAC) cells was studied. The
nanoparticles
were studied by transmission electron microscopy, Mossbauer spectroscopy, IR spectroscopy, and ferromagnetic resonance. A correlation between the proportion of dead EAC cells in suspension and the intensity of the EPR signal of dinitrosyl iron complexes was found. This result may be due to the presence of NO molecules.
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Держатели документа:
Krasnoyarsk Scientific Center, Federal Research Center Ksc Sb Ras, Krasnoyarsk, 660036, Russian Federation
Kirensky Institute of Physics, Federal Research Center Ksc Sb Ras, Krasnoyarsk, 660036, Russian Federation
Доп.точки доступа:
Stolyar, S. V.; Kryukova, O. V.; Yaroslavtsev, R. N.; Bayukov, O. A.; Баюков, Олег Артемьевич; Knyazev, Yu. V.; Князев, Юрий Владимирович; Gerasimova, Yu. V.; Герасимова, Юлия Валентиновна; Pyankov, V. F.; Latyshev, N. V.; Shestakov, N. P.; Шестаков, Николай Петрович
}
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12.
Magnetic sorting of
tumor cells with attached magnetic
nanoparticles
in a microchannel / P. Denissenko, V. V. Denisenko, I. Denisov [et al.]> //
Molecular Therapy - Nucleic Acids : book of abstracts of the 1st Int. conf. "Aptamers in Russia 2019". - 2019. -
Vol. 17
,
Suppl. 1
. - P. 14
Материалы конференции
Доп.точки доступа:
Denissenko, P.; Denisenko, V. V.; Denisov, I.; Kantsler, V.; Kolovskaya, O. S.; Коловская, О. С.; Lapin, I. N.; Sokolov, A. Е.; Соколов, Алексей Эдуардович; Svetlichnyi, V.; Светличный, В. А.; Zabluda, V. N.; Заблуда, Владимир Николаевич; Zamay, S. S.; Замай, С. С.; Kichkailo, A.S.; Кичкайло, Анна Сергеевна; Aptamers in Russia, international conference(1 ; 2019 ; Aug. 27-30 ; Krasnoyarsk)
}
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13.
Magnetic and optical
properties of
nanoparticles
of iron and nickel decorated with gold and the possibility of their medical use / A. V. Kurilova, A. Е. Sokolov, A. V. Sherepa [et al.]> //
Pulsed lasers and laser applications (AMPL-2019) : abstracts of XIV Int. conf. - 2019. - Ст. Y-30. - P. 30 . - ISBN 978-5-93629-634-5
Материалы конференции
Доп.точки доступа:
Kurilova, A. V.; Sokolov, A. Е.; Соколов, Алексей Эдуардович; Sherepa, A. V.; Volochaev, M. N.; Волочаев, Михаил Николаевич; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Goncharova, D. A.; Shabalina, A. V.; Svetlichnyi, V.; Светличный В.; Pulsed Lasers and Laser Applications, International Conference(14 ; 2019 ; 15-20 Sept. ; Tomsk)
}
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14.
Magneto-optical properties of
the iron oxide
nanoparticles
obtained by laser ablation / A. V. Kurilova, A. Е. Sokolov, A. V. Sherepa [et al.]> //
Pulsed lasers and laser applications (AMPL-2019) : abstracts of XIV Int. conf. - 2019. - Ст. B-12. - P. 61-62 . - ISBN 978-5-93629-634-5
Материалы конференции
Доп.точки доступа:
Sokolov, A. Е.; Соколов, Алексей Эдуардович; Kurilova, A. V.; Sherepa, A. V.; Volochaev, M. N.; Волочаев, Михаил Николаевич; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Goncharova, D. A.; Shabalina, A. V.; Svetlichnyi, V.; Светличный В.; Pulsed Lasers and Laser Applications, International Conference(14 ; 2019 ; 15-20 Sept. ; Tomsk)
}
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15.
Thermoelectric and Plasmonic
Properties of Metal
Nanoparticles
Linked by Conductive Molecular Bridges / A. S. Fedorov, P. O. Krasnov, M. A. Visotin [et al.]> // Phys. Status Solidi B. - 2020. -
Vol. 257
,
Is. 12
. - Ст. 2000249,
DOI
10.1002/pssb.202000249. - Cited References: 53. - This study was supported by the Russian Science Foundation, project no. 16-13-00060 (thermoelectric properties), and by the Ministry of Science and High Education of the Russian Federation, project no. FSRZ-2020-0008 (plasmonic properties) . - ISSN 0370-1972. - ISSN 1521-3951
РУБ
Physics, Condensed Matter
Рубрики:
POLYMERS
ARRAYS
RANGE
Кл.слова (ненормированные):
charge transfer plasmons
--
density functional theory
--
nanoparticles
--
thermoelectric properties
Аннотация:
Thermoelectric and plasmonic properties of systems comprising small golden
nanoparticles
(NPs) linked by narrow conductive polymer bridges are studied using the original hybrid quantum-classical model. The bridges are considered here to be either conjugated polyacetylene, polypyrrole, or polythiophene chain molecules terminated by thiol groups. The parameters required for the model are obtained using density functional theory and density functional tight-binding simulations. Charge-transfer plasmons in the considered dumbbell structures are found to possess frequency in the infrared region for all considered molecular linkers. The appearance of plasmon vibrations and the existence of charge flow through the conductive molecule, with manifestation of quantum properties, are confirmed using frequency-dependent polarizability calculations implemented in the coupled perturbed Kohn-Sham method. To study the thermoelectric properties of the 1D periodical systems, a universal equation for the Seebeck coefficient is derived. The phonon part of the thermal conductivity for the periodical -NP-S-C8H8- system is calculated by the classical molecular dynamics. The thermoelectric figure of meritZTis calculated by considering the electrical quantum conductivity of the systems in the ballistic regime. It is shown that forAu309nanoparticles connected by polyacetylene, polypyrrole, or polythiophene chains atT = 300 K, the ZTvalue is {0.08;0.45;0.40}, respectively.
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Держатели документа:
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
RAS, Kirensky Inst Phys, KSC, SB, Krasnoyarsk 660036, Russia.
Tomsk State Univ, Tomsk 634050, Russia.
Доп.точки доступа:
Fedorov, A. S.; Федоров, Александр Семенович; Krasnov, Pavel O.; Visotin, M. A.; Высотин, Максим Александрович; Tomilin, F. N.; Томилин, Феликс Николаевич; Polyutov, Sergey P.; Russian Science FoundationRussian Science Foundation (RSF) [16-13-00060]; Ministry of Science and High Education of the Russian Federation; FSRZ-2020-0008 (plasmonic properties)
}
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16.
Polysaccharide-coated iron oxide
nanoparticles
: Synthesis, properties, surface modification / S. V. Stolyar, V. V. Krasitskaya, L. A. Frank [et al.]> // Mater. Lett. - 2021. -
Vol. 284
. - Ст. 128920,
DOI
10.1016/j.matlet.2020.128920. - Cited References: 12. - The reported study was carried out with the financial support of the Russian Foundation for Fundamental Research , the Government of the Krasnoyarsk Territory , the Krasnoyarsk Territory Fund for Support of Scientific and Technical Activity in the framework of scientific Project No. 18-43-243003. This work was supported by the Council of the President of the Russian Federation for State Support of Young Scientists and Leading Scientific Schools (project no. MK-1263.2020.3) . - ISSN 0167-577X
Кл.слова (ненормированные):
Magnetic materials
--
Nanoparticles
--
Biomaterials
--
Magnetic materials
--
Polysaccharide
Аннотация:
In this work, magnetite
nanoparticles
coated with polysaccharides were synthesized. Arabinogalactan and chitosan were used as polysaccharides. The possibilities of immobilization of biospecific molecules on the surface of the obtained composites were studied. Experiments on covalent immobilization of biospecific molecules on magnetic
nanoparticles
coated with a polysaccharide showed a high density of immobilized molecules. This suggests the use of such materials in bioanalytical systems or as affinity sorbents.
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Держатели документа:
Krasnoyarsk Scientific Center, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Institute of Biophysics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Astrakhan State University, Astrakhan, Russian Federation
University of Al-qasim Green, College of Biotechnology, Iraq
Доп.точки доступа:
Stolyar, S. V.; Столяр, Сергей Викторович; Krasitskaya, V. V.; Frank, L. A.; Yaroslavtsev, R. N.; Ярославцев, Роман Николаевич; Chekanova, L. A.; Чеканова, Лидия Александровна; Gerasimova, Yu. V.; Герасимова, Юлия Валентиновна; Volochaev, M. N.; Волочаев, Михаил Николаевич; Bairmani, M. S.; Velikanov, D. A.; Великанов, Дмитрий Анатольевич
}
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17.
Magnetooptics of nanocomposites
based on iron chalcogenide
nanoparticles
/ R. Ivantsov, D. Petrov, O. Ivanova [et al.]> // Solid State Phenom. - 2020. -
Vol. 312
. - P. 160-165,
DOI
10.4028/www.scientific.net/SSP.312.160. - Cited References: 13. - The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science, to the research project: № 19-42-240005 «Features of the electronic structure, magnetic properties and optical excitations in nanocrystals of the multifunctional magnetic chalcogenides Fe3S4 and FeSe», by Joint Research Project of Russian Foundation for Basic Research № 19-52-52002 and Ministry of Science and Technology, Taiwan MOST № 108-2923-M-153-001-MY3 and № 106-2112-M-153-001-MY3. . - ISSN 1012-0394. - ISSN 1662-9779
Перевод заглавия:
Магнитооптика нанокомпозитов на основе наночастиц халькогенида железа
Кл.слова (ненормированные):
iron selenide
--
iron sulphide
--
magnetic circular dichroism
--
magnetic properties
--
nanoparticles
Аннотация:
Morphology, structure, magnetic properties and magnetic circular dichroism (MCD) were studied for the FexSy and FexSey
nanoparticles
(NPs) synthesized with the polyol mediated and the thermal decomposition processes, correspondingly, at different regimes. For all NPs samples, but Fe3S4, MCD was measured for the first time. It has been shown that in the case of sulfides, the character of the MCD spectrum changes as the NPs phase composition transforms from Fe3S4 to FeS with the synthesis temperature increase. At the same time, the shape of the MCD spectrum is almost independent of the NPs phase in the case of iron selenides.
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Опубликовано в другом издании
Magnetooptics of nanocomposites based on iron chalcogenide
nanoparticles
[Текст] / R. D. Ivantsov, D. A. Petrov, O. S. Ivanova [et al.] // The Fifth Asian School-Conference on Physics and Technology of Nanostructured Materials : Proceedings. - VLadivostok : Dalnauka Publishing, 2020.- Ст.IV.03.05o.- P.105
Держатели документа:
Kirensky Institute of Physics, Russian Academy of Sciences, Krasnoyarsk, 660036, Russia
Siberian Federal University, Krasnoyarsk, 660041, Russia
National Pingtung University, Pingtung City, Pingtung County, 90003, Taiwan
Доп.точки доступа:
Ivantsov, R. D.; Иванцов, Руслан Дмитриевич; Petrov, D. A.; Петров, Дмитрий Анатольевич; Ivanova, O. S.; Иванова, Оксана Станиславовна; Edelman, I. S.; Эдельман, Ирина Самсоновна; Zharkov, S. M.; Жарков, Сергей Михайлович; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Lin, Chun-Rong; Asian School-Conference on Physics and Technology of Nanostructured Materials(5 ; 2020 ; 30 Jul - 3 Aug ; Vladivostok); Азиатская школа-конференция по физике и технологии наноструктурированных материалов(5 ; 2013 ; 30 июля - 3 авг. ; Владивосток)
}
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18.
Влияние реакционных условий
на размер наночастиц серебра в концентрированных золях Carey Lea / С. А. Воробьев, М. Н. Лихацкий, А. С. Романченко [и др.]> // Журн. СФУ. Химия. - 2020. -
Т. 13
,
№ 3
. - С. 372-384 ; J. Sib. Fed. Univ. Chem.,
DOI
10.17516/1998-2836-0190. - Библиогр.: 34. - Работа выполнена при финансовой поддержке Российского научного фонда, грант No 18-73-00142 . - ISSN 1998-2836. - ISSN 2313-6049
Перевод заглавия:
The Influence of the Reaction Conditions on the Size of Silver
Nanoparticles
in Carey Lea's Concentrated Sols
РУБ
Chemistry, Multidisciplinary
Рубрики:
AG
NANOPARTICLES
CITRATE
AGGREGATION
SURFACE
STABILITY
KINETICS
Кл.слова (ненормированные):
наночастицы серебра
--
концентрированные золи
--
влияние реакционных условий
--
цитрат-ион
--
silver
nanoparticles
--
concentrated sols
--
influence of reaction conditions
--
citrate ion
Аннотация:
В данной работе был изучен процесс восстановления растворов Ag (I) цитратными комплексами Fe (II), который позволяет получать наночастицы серебра с высокой стабильностью и концентрацией более 60 г/л. В ходе работы было установлено влияние скорости введения, скорости перемешивания, концентрации реагентов, рН среды и некоторых постсинтетических операций на средний размер наночастиц. Показано, что снижение концентрации Ag (I) и повышение концентрации стабилизатора, доведение рН реакционной среды до 7 позволяют получать наиболее мелкие и однородные частицы. В результате были найдены оптимальные условия, которые дали возможность уменьшить размер частиц и вместе с тем снизить концентрацию реактивов на 33 %. По данным РФЭС, ПЭМ, DLS и ИК были получены наночастицы металлического серебра с размером 6.5±1.8 нм, стабилизированные продуктом частичного распада цитрат-иона.
The reaction of reduction solution of Ag (I) by Fe (II) citrate complex was studied herein. This allows you to receive silver
nanoparticles
with high stability with a concentration above 60 g/l. It was determined that the
nanoparticles
size depends on the injection rate, mixing rate, reagent concentration, pH and some post-synthetic operations on the average size of
nanoparticles
. It was shown that decreasing the concentration of Ag (I) and increasing the concentration of stabilizer also bringing pH to 7 lead to small and uniform particles. Optimal conditions were found that made it possible to reduce particle size and reduce the concentration of reagents by 33 % in the results. According to XPS, TEM, DLS and FTIR datas,
nanoparticles
of metallic silver with a size of 6.5±1.8 nm were obtained, which stabilized by the product of partial decay of the citrate ion.
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Держатели документа:
Институт химии и химической технологии ФИЦ «Красноярский научный центр СО РАН», Российская Федерация, Красноярск
Сибирский федеральный университет, Российская Федерация, Красноярск
Институт физики им. Киренского, КНЦ СО РАН, Российская Федерация, Красноярск
Сибирский государственный университет науки и технологий им. М.Ф. Решетнева, Российская Федерация, Красноярск
Доп.точки доступа:
Воробьев, С. А.; Лихацкий, М. Н.; Романченко, А. С.; Иваненко, Т. Ю.; Машарова, Д. А.; Волочаев, Михаил Николаевич; Volochaev, M. N.; Михлин, Ю. Л.; RUSSIAN SCIENCE FOUNDATIONRussian Science Foundation (RSF) [18-73-00142]
}
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19.
New titania-based photocatalysts
for hydrogen production from aqueous-alcoholic solutions of methylene blue / D. V. Markovskaya, A. V. Zhurenok, A. Y. Kurenkova [et al.]> // RSC Adv. - 2020. -
Vol. 10
,
Is. 56
. - P. 34137-34148,
DOI
10.1039/d0ra07630a. - Cited References: 57. - The XPS and XRD experiments were performed using facilities of the shared research center "National center for investigation of catalysts" at Boreskov Institute of Catalysis. The authors are grateful to Dr S. Cherepanova for the XRD study and Dr T. Larina and Dr D. Selishchev for the UV-vis measurements. The TEM investigations were conducted in the SFU Joint Scientific Center supported by the State assignment (#FSRZ-2020-0011) of the Ministry of Science and Higher Education of the Russian Federation . - ISSN 2046-2069
Перевод заглавия:
Новые катализаторы, основанные на диоксиде титана, для производства водорода из водно-спиртовых растворов метиленовой сини
РУБ
Chemistry, Multidisciplinary
Рубрики:
Ray absorption-edge
In-situ
Ag
nanoparticles
Chemical-states
XPS analysis
Аннотация:
A series of CuOx–TiO2 photocatalysts were prepared using fresh and thermally activated Evonik Aeroxide P25 titanium dioxide. The photocatalysts were characterized by X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, XANES, diffuse reflectance spectroscopy, and N2 adsorption technique. Photocatalytic activity of the samples was tested in hydrogen production from aqueous-alcoholic solutions of methylene blue under UV radiation (λ = 386 nm). It was found for the first time the synergistic effect of hydrogen production from two substrates—dye and ethanol. The maximum hydrogen production rate in the system water–ethanol–methylene blue was 1 μmol min−1, which is 25 times higher than a value measured in a 10% solution of ethanol in water. The thermal activation of titania also leads to a change in the rate of hydrogen production. The highest catalytic activity was observed for a CuOx–TiO2 photocatalyst based on titania thermally-activated at 600 °C in air. A mechanism of the photocatalytic reaction is discussed.
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Держатели документа:
Boreskov Inst Catalysis, Fed Res Ctr, Lavrentiev Ave 5, Novosibirsk 630090, Russia.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Akademgorodok 50-38, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia.
Доп.точки доступа:
Markovskaya, Dina, V; Zhurenok, Angelina, V; Kurenkova, Anna Yu; Kremneva, Anna M.; Saraev, Andrey A.; Zharkov, S. M.; Жарков, Сергей Михайлович; Kozlova, Ekaterina A.; Kaichev, Vasily V.
}
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20.
Ferrihydrite
nanoparticles
insights:
Structural characterization, lactate dehydrogenase binding and virtual screening assay / C. G. Chilom, N. Sandu, M. Balasoiu [et al.]> // Int. J. Biol. Macromol. - 2020. -
Vol. 164
. - P. 3559-3567,
DOI
10.1016/j.ijbiomac.2020.08.242. - Cited References: 64. - The work was accomplished in the frame of JINR Themes 02-1-1107-2011/2021, 04-5-1131-2017/2021 and 04-4-1121-2015/2020 and with the financial support of the RO-JINR Projects Nos. 268/21.05.2020 items 8 and 77, and 269/21.05.2020 items 11 and – 80. MB acknowledges Dr. Alexander Kuklin for assistance for SANS measurements and fruitful discussions. The authors acknowledge Dr. George Stan of the National Institute of Materials Physics for facilitating the conduct of FTIR experiments . - ISSN 0141-8130
Кл.слова (ненормированные):
Ferrihydrite
nanoparticles
--
Lactate dehydrogenase
--
Binding mechanism
--
Energy transfer
--
Thermodynamic fingerprint
--
Virtual screening
Аннотация:
The binding between the enzyme lactate dehydrogenase (LDH) and ferrihydrite
nanoparticles
(Fh-NPs) was investigated by means of small-angle neutron scattering (SANS), Fourier-transform infrared (FTIR) spectroscopy, fluorescence and Forster resonance energy transfer (FRET) and molecular docking. Fh-NPs - LDH compounds of dimensions under 100 nm are formed. The conformational changes and the mechanism of interaction between LDH and Fh-NPs simple and doped with Cu and Co, and the effect of these NPs on the thermal denaturation of LDH were monitored. The quenching mechanism is static, the binding occurring with moderate affinity, being mainly driven by hydrogen bonding and van der Waals forces. FRET occurs at a minimal distance of 2.55 nm. Thermal denaturation of LDH in the presence of simple and doped Fh-NPs shows that the thermodynamic parameters of protein unfolding are significantly changed with temperature. The denaturation temperature of LDH shifts to higher values in the presence of all Fh-NPs, than in the case of simple LDH. The docking approach estimates the energy corresponding to the best fit of the ferrihydrite in the LDH binding site near Trp. These results have direct implications on the uses of the complex of LDH with Fh-NPs in various biochemical, biological, or clinical applications.
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Держатели документа:
Faculty of Physics, University of Bucharest, Romania
Joint Institute for Nuclear Research, Dubna, Russian Federation
Moscow Institute of Physics and Technology, Dolgoprudniy, Russian Federation
“Horia Hulubei” National Institute of Physics and Nuclear Engineering, Magurele, Romania
Siberian Federal University, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, SB RAS, Krasnoyarsk, 660036, Russian Federation
Доп.точки доступа:
Chilom, C. G.; Sandu, N.; Balasoiu, M.; Yaroslavtsev, R. N.; Ярославцев, Роман Николаевич; Stolyar, S. V.; Столяр, Сергей Викторович; Rogachev, A. V.
}
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