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Bacterial ferrihydrite nanoparticles: preparation, magnetic properties, and application in medicine / S. V. Stolyar [et al.] // J. Supercond. Novel Magn. - 2018. - Vol. 31, Is. 8. - P. 2297-2304, DOI 10.1007/s10948-018-4700-1. - Cited References: 37. - The electron microscopy examination was carried out at the Center for Collective Use of the Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences (Krasnoyarsk, Russia). . - ISSN 1557-1939
Кл.слова (ненормированные):
Nanoparticles -- Ferrihydrite -- Magnetic properties -- Drug delivery
Аннотация: Nanoparticles of antiferromagnetically ordered materials acquire the uncompensated magnetic moment caused by defects and surface effects. A bright example of such a nano-antiferromagnet is nanoferrihydrite consisting of particles 2–5 nm in size, the magnetic moment of which amounts to hundreds of Bohr magnetons per particle. We present a brief review of the studies on magnetic properties of ferrihydrite produced by bacteria. Special attention is focused on the aspects of possible biomedical applications of this material, i.e., the particle elimination, toxicity, and possible use for targeted drug delivery.

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Держатели документа:
Siberian Federal University, Krasnoyarsk, Russian Federation
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 Clinical Center, Krasnoyarsk, Russian Federation
Scientific Research Institute of Medical Problems of the North, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Stolyar, S. V.; Столяр, Сергей Викторович; Balaev, D. A.; Балаев, Дмитрий Александрович; Ladygina, V. P.; Dubrovskiy, A. A.; Дубровский, Андрей Александрович; Krasikov, A. A.; Красиков, Александр Александрович; Popkov, S. I.; Попков, Сергей Иванович; Bayukov, O. A.; Баюков, Олег Артемьевич; Knyazev, Yu. V.; Князев, Юрий Владимирович; Yaroslavtsev, R. N.; Ярославцев, Роман Николаевич; Volochaev, M. N.; Волочаев, Михаил Николаевич; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Dobretsov, K. G.; Morozov, E. V.; Морозов, Евгений Владимирович; Falaleev, O. V.; Фалалеев, Олег Владимирович; Inzhevatkin, E. V.; Kolenchukova, O. A.; Chizhova, I. A.
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Bacterial ferrihydrite nanoparticles: preparation, magnetic properties, and application in medicine / S. V. Stolyar [и др.] // Moscow Int. Symp. on Magnet. (MISM-2017) : 1-7 July 2017 : book of abstracts. - 2017. - Ст. 3RP-O-10. - P. 417. - Cited References: 8. - Support by the Special Program for Siberian Federal University of the Ministry of Education and Science of the Russian Federation is acknowledged

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Доп.точки доступа:
Stolyar, S. V.; Столяр, Сергей Викторович; Balaev, D. A.; Балаев, Дмитрий Александрович; Ladygina, V. P.; Dubrovskiy, A. A.; Дубровский, Андрей Александрович; Krasikov, A. A.; Красиков, Александр Александрович; Popkov, S. I.; Попков, Сергей Иванович; Bayukov, O. A.; Баюков, Олег Артемьевич; Yaroslavtsev, R. N.; Ярославцев, Роман Николаевич; Volochaev, M. N.; Волочаев, Михаил Николаевич; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Dobretsov, K. G.; Falaleev, O.V.; Chizhova, I. A.; Moscow International Symposium on Magnetism(7 ; 2017 ; Jul. ; Moscow); Московский государственный университет им. М.В. Ломоносова; Российский фонд фундаментальных исследований
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Elimination of iron-containing magnetic nanoparticles from the site of injection in mice: a magnetic-resonance imaging study / E. V. Inzhevatkin [et al.] // Bull. Exp. Biol. Med. - 2015. - Vol. 158, Is. 6. - P. 807-811, DOI 10.1007/s10517-015-2867-z. - Cited References:7 . - ISSN 0007. - ISSN 1573-8221. -

РУБ Medicine, Research & Experimental

Кл.слова (ненормированные):
magnetic nanoparticles -- Klebsiella oxytoca -- magnetic resonance imaging -- elimination
Аннотация: Suspension of magnetic nanoparticles (0.7 g/liter) obtained from Klebsiella oxytoca culture was injected intraperitoneally (1 ml), intramuscularly (in the hip; 100 mu l), and subcutaneously (200 mu l) or administered orally instead of drinking water for 2 days. The presence of magnetic nanoparticles was evaluated detected by MRI in 15 min and 2 h after injections and in 1 and 2 days after the beginning of oral consumption of the suspension. Magnetic nanoparticles were eliminated from the site of intramuscular and intraperitoneal injections and after oral consumption. The period of elimination after intramuscular and intraperitoneal injections did not exceed 2 h, while after oral consumption it corresponded to the time of gastrointestinal tract contents evacuation.

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Публикация на русском языке Исследование элиминации железосодержащих магнитных наночастиц из области введения в организме мышей с использованием ЯМР–томографии [Текст] / Е. В. Инжеваткин [и др.] // Бюлл. эксперим. биол. и мед. - 2014. - Т. 158 № 12. - С. 777-781

Держатели документа:
Russian Acad Sci, Krasnoyarsk Res Ctr, Siberian Div, Krasnoyarsk, Russia
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Russian Acad Sci, Nauka Special Designing & Technol Bur, Krasnoyarsk Res Ctr, Siberian Div, Krasnoyarsk, Russia
Siberian Fed Univ, Krasnoyarsk, Russia

Доп.точки доступа:
Inzhevatkin, E. V.; Morozov, E. V.; Морозов, Евгений Владимирович; Khilazheva, E. D.; Ladygina, V. P.; Stolyar, S. V.; Столяр, Сергей Викторович; Falaleev, O. V.
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Falaleev, O. V.
Cross-singular dips in the NMR absorption line of polycrystals with isolated spin pairs / O. V. Falaleev, L. G. Falaleeva // JETP Letters. - 1998. - Vol. 68, Is. 1. - P. 101-106, DOI 10.1134/1.567828. - Cited References: 21 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
F-19 NMR
Аннотация: Cross-singular dips at the center of the spectra of polycrystals of Fake systems, i.e., systems containing well-isolated pair groupings, are obtained by numerical calculations of the NMR absorption line for a 10-spin (I=1/2) model. The physical reason for such dips is the behavior of the flip-flop component of the interpair dipole-dipole interactions ("6/5 factor"). Cases of experimental manifestation of cross-singular dips are noted. (C) 1998 American Institute of Physics.

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Держатели документа:
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН
L. V. Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, 660036 Krasnoyarsk, Russian Federation

Доп.точки доступа:
Falaleeva, L. G.
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    Falaleev, O. V.
    Fine srtucture of PMR line shape in Ca(OH)2 single crystal // Proceedings of the 1st soviet-indian symposium on actual problems of magnetic resonance spectroscopy of inorganic materials. - Dushanbe, 1982. - P. 72-73. - Библиогр.: 4
   Перевод заглавия: Тезисы докладов I советско-индийского симпозиума "Актуальные проблемы магнитной резонансной спектроскопии неорганических материалов"

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

Доп.точки доступа:
Kukhlevsky, O. P.; Кухлевский, Олег Павлович; Keeperman, E. M.; Фалалеев, Олег Владимирович; Soviet-indian symposium on actual problems of magnetic resonance spectroscopy of inorganic materials(1 ; 1982 ; Sept. 29-Oct. 2 ; Dushanbe); Академия наук СССР; Indian national academy of sciences; Академия наук Таджикской ССР
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Measurement of the anisotropy of weak indirect interaction between magnetic nuclei in cesium tgse / O. V. Falaleev [и др.] // Fiz. Tverd. Tela. - 1981. - Vol. 23, Is. 6. - P. 1853-1857. - Cited References: 12 . - ISSN 0367-3294

РУБ Physics, Condensed Matter

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Доп.точки доступа:
Falaleev, O. V.; Фалалеев, Олег Владимирович; Kriger, A. I.; Sukhovskii, A. A.; Суховский, Андрей Андреевич; Moskvich, Yu. N.
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Morozov, E. V.
MRI Comparative Study of Container Geometry Impact on the PMMA Spheres Sedimentation / E. V. Morozov, O. V. Shabanova, O. V. Falaleev // Appl. Magn. Reson. - 2013. - Vol. 44, Is. 5. - P. 619-636, DOI 10.1007/s00723-012-0432-8. - Cited References: 31 . - ISSN 0937-9347

РУБ Physics, Atomic, Molecular & Chemical + Spectroscopy
Рубрики:
OPAL PHOTONIC CRYSTALS
   SUSPENSIONS
   PARTICLES
   VELOCITY
Аннотация: Nuclear magnetic resonance (NMR) imaging results are presented for the comparative study of sedimentation of the polymethylmethacrylate colloidal suspensions with spherical particle diameters of 475, 350 and 255 nm. The time evolution of the particle volume fraction in the sedimenting system, velocity of the fluid/suspension interface, interface broadening, and sediment growth velocity are measured against the system concentration as well as the container geometry. Using the experimental data the hindered settling function is evaluated. The influence of the container geometry on the parameters defining the hindered settling function in different approaches is evaluated for the first time. The limiting value of the particle diameter is estimated at which the container geometry has no impact any longer. This effect can be explained by the microscale structure persisting at low Peclet numbers. In addition, the influence of the container geometry on interface broadening and sediment formation for different particle diameters and volume fractions is studied. Spontaneous sediment packing induced by a modified container geometry has been found. NMR imaging has proven to be a highly efficient research tool for studying sedimentation at low Peclet numbers.

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Держатели документа:
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Russian Acad Sci, Siberian Branch, Special Design & Technol Bur Nauka, Krasnoyarsk 660049, Russia

Доп.точки доступа:
Shabanova, O. V.; Falaleev, O. V.; Морозов, Евгений Владимирович
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Morozov, E. V.
New insight into the wax precipitation process: in situ NMR imaging study in a cold finger cell / E. V. Morozov, O. V. Falaleev, O. N. Martyanov // Energy Fuels. - 2016. - Vol. 30, Is. 11. - P. 9003-9013, DOI 10.1021/acs.energyfuels.6b01535. - Cited References: 69. - This research was performed with the financial support of the Russian Science Foundation (Project No. 15-19-00119). . - ISSN 0887-0624
Кл.слова (ненормированные):
Cells -- Crude oil -- Cytology -- Deposits -- Diffusion -- Gelation -- Magnetic resonance imaging -- Ostwald ripening -- Phase separation -- Polymer blends -- Deposit formation -- Deposit structures -- Diffusion controlled growth -- Dominant mechanism -- Lower temperatures -- Morphology and dynamics -- Phase-separation process -- Temperature regimes -- Image processing
Аннотация: A cold finger cell intended for the wax deposition measurements was fabricated and integrated into an NMR imaging probe for the noninvasive study of wax precipitation processes in situ. The cell was first tested with a model system; then, a series of experiments with different thermal gradients applied to the cell were performed for a waxy crude oil. NMR imaging of the operating cell revealed the formation of a deposit with the morphology and dynamics strongly correlating with the temperature regime. At higher temperatures of cold finger, the incipient wax gel ages uniformly, giving rise to the hard and thin inner layer of deposit accompanied by a branched loosely consolidated outer layer. Conversely, the lower temperatures facilitate formation of a thick deposit which no longer ages uniformly and slow down the diffusion-controlled growth of the branched deposit structure. The results obtained are consistent with the majority of the data previously reported. Thus, gelation of the wax at temperatures below the cloud point and subsequent thermal-driven diffusion processes are considered to be the dominant mechanisms of the deposit formation. The counter diffusion and Ostwald ripening aging concepts were found to be relevant in the case of the cold finger study and account for the phenomena observed in this work. The information obtained via NMR imaging is highly complementary to the results obtained by other techniques that can aid in understanding the essential processes behind the wax precipitation phenomena. The approach developed can be effectively extended to study any thermal-driven phase separation process. © 2016 American Chemical Society.

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Держатели документа:
Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences, Akademgorodok 50/38, Krasnoyarsk, Russian Federation
Institute of Chemistry and Chemical Technology, Siberian Branch of the Russian Academy of Sciences, Akademgorodok 50/24, Krasnoyarsk, Russian Federation
Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Pr. Ak. Lavrentieva 5, Novosibirsk, Russian Federation
Krasnoyarsk Scientific Centre, Siberian Branch of the Russian Academy of Sciences, Akademgorodok 50, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Falaleev, O. V.; Martyanov, O. N.; Морозов, Евгений Владимирович
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Morozov, E. V.
NMR Imaging application to study colloidal systems of PMMA spheres / E. V. Morozov, O. V. Shabanova, O. V. Falaleev // School for Young Scientists "Magnetic resonance and magnetic phenomena in chemical and biological physics" : Program and Abstracts. - Новосибирск, 2012. - P. 46
Аннотация:

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Доп.точки доступа:
Shabanova, O. V.; Falaleev, O. V.; Морозов, Евгений Владимирович; Институт химической кинетики и горения им. В.В. Воеводского Сибирского отделения РАН; Международный томографический центр Сибирского отделения РАН; "Magnetic Resonance and Magnetic Phenomena in Chemical and Biological Physics", School for Young Scientists (2012 ; июль ; 16-21 ; Новосибирск)
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10.

MRI study of fresh-selected liver surface subject to plasma treatment [Text] / E. V. Morozov, O. V. Falaleev [et al.] // Nuclear magnetic resonance in condensed matter : Intern. symp. a. summer school in Saint Petersburg, 5th meet. "NMR in heterogeneous systems", 4-5 July 2008 : book of abstracts. - 2008. - P261

Доп.точки доступа:
Morozov, E. V.; Морозов, Евгений Владимирович; Falaleev, O. V.; Фалалеев, Олег Владимирович; Osipova, I. V.; Осипова, Ирина Владимировна; Vnukova, N. G.; Внукова, Наталья Григорьевна; Churilov, G. N.; Чурилов, Григорий Николаевич; "Nuclear Magnetic Resonance in Condensed Matter", International symposium and summer school(5 ; 2008 ; июль ; Санкт-Петербург); Санкт-Петербургский государственный университет
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