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State of iron in nanoparticles prepared by impregnation of silica gel and aluminum oxide with FeSO4 solutions / G. A. Bukhtiyarova [et al.] // Phys. Solid State. - 2010. - Vol. 52, Is. 4. - P. 826-837, DOI 10.1134/S1063783410040268. - Cited References: 27. - This study was supported by the Presidium of the Russian Academy of Sciences within the framework of the Program no. 27 "Principles of Basic Research of Nanotechnologies and Nanomaterials," Project no. 46 "Magnetically Ordered Nanoparticles in Catalytic Systems: Synthesis, Evolution, and Physicochemical Properties." . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
THERMAL-DECOMPOSITION
   BETA-FEOOH
   MOSSBAUER
   FERRIHYDRITE
   EPSILON-FE2O3
   FE-2(SO4)(3)
   SULFATE
   FE-57
Аннотация: The state of iron in nanoparticles prepared by impregnating silica gel and aluminum oxide with iron(II) sulfate solutions has been investigated using Mossbauer spectroscopy. It has been revealed that the state of iron depends on the nature of the support. Iron(III) hydroxysulfate and iron(III) oxysulfate nanoparticles are formed on the surface of silica gel, and iron oxide nanoparticles are formed on the surface of aluminum oxide. An increase in the concentration of iron ions or in the size of iron-containing particles leads to hydration of the nanoparticle surface. The calcination of the samples results in the formation of E -Fe2O3 oxide in a strongly disordered or amorphous state in iron-containing particles on the surface of silica gel.

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Держатели документа:
[Bukhtiyarova, G. A.
Mart'yanov, O. N.
Yakushkin, S. S.
Shuvaeva, M. A.] Russian Acad Sci, Siberian Branch, Boreskov Inst Catalysis, Novosibirsk 630090, Russia
[Bayukov, O. A.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
ИФ СО РАН
Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent'eva 5, Novosibirsk 630090, Russian Federation
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Bukhtiyarova, G. A.; Mart'yanov, O. N.; Yakushkin, S. S.; Shuvaeva, M. A.; Bayukov, O. A.; Баюков, Олег Артемьевич
}
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Magnetic properties of biomineral particles produced by bacteria Klebsiella oxytoca / Y. L. Raikher [et al.] // Phys. Solid State. - 2010. - Vol. 52, Is. 2. - P. 298-305, DOI 10.1134/S1063783410020125. - Cited References: 29. - This study was supported by the Russian Foundation for Basic Research (project nos. 07-02-96026, 07- 02-96017, and 08-02-00802) and performed within the framework of the Federal Target Program "Research and Research-Pedagogical Personnel of Innovation Russia for 2009-2013." . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
FERRITIN
   NANOPARTICLES
   IRON
   SUSCEPTIBILITY
   FERRIHYDRITE
   BEHAVIOR
   FINS
Аннотация: Ferrihydrite nanoparticles (2-5 nm in size) produced by bacteria Klebsiella oxytoca in the course of biomineralization of iron salt solutions from a natural medium exhibit unique magnetic properties: they are characterized by both the antiferromagnetic order inherent in a bulk ferrihydrite and the spontaneous magnetic moment due to the decompensation of spins in sublattices of a nanoparticle. The magnetic susceptibility enhanced by the superantiferromagnetism effect and the magnetic moment independent of the magnetic field provide the possibility of magnetically controlling these natural objects. This has opened up the possibilities for their use in nanomedicine and bioengineering. The results obtained from measurements of the magnetic properties of the ferrihydrite produced by Klebsiella oxytoca in its two main crystalline modifications are reported, and the data obtained are analyzed theoretically. This has made it possible to determine numerical values of the magnetic parameters of real biomineral nanoparticles.

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Держатели документа:
[Raikher, Yu. L.
Stepanov, V. I.] Russian Acad Sci, Ural Div, Inst Continuum Media Mech, Perm 614013, Russia
[Stolyar, S. V.
Balaev, D. A.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Stolyar, S. V.
Balaev, D. A.
Ishchenko, L. A.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Ladygina, V. P.] Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Int Sci Ctr Res Organism Extreme Condit, Krasnoyarsk 660036, Russia
[Balasoiu, M.] Joint Inst Nucl Res, Dubna 141980, Moscow Oblast, Russia
ИФ СО РАН
Institute of Continuum Media Mechanics, Ural Division, Russian Academy of Sciences, ul. Akademika Koroleva 1, Perm 614013, Russian Federation
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, pr. Svobody 79, Krasnoyarsk 660041, Russian Federation
International Scientific Center for Research of Organism under Extreme Conditions, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Joint Institute for Nuclear Research, ul. Joliot-Curie 6, Dubna, Moscow oblast 141980, Russian Federation

Доп.точки доступа:
Raikher, Y. L.; Stepanov, V. I.; Stolyar, S. V.; Столяр, Сергей Викторович; Ladygina, V. P.; Balaev, D. A.; Балаев, Дмитрий Александрович; Ishchenko, L. A.; Balasoiu, M.
}
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Hierarchical structure investigations of biogenic ferrihydrite samples / M. Balasoiu [et al.] // Rom. J. Phys. - 2010. - Vol. 55, Is. 7-8. - P. 782-789. - Cited References: 21. - The work was accomplished with the financial support of Grant 224/11.04.2008 of Romanian Governmental Plenipotentiary at JINR. . - ISSN 1221-146X

РУБ Physics, Multidisciplinary
Рубрики:
ELECTRON NANODIFFRACTION
   6-LINE FERRIHYDRITE
   SYNTHETIC 2-LINE
   FERROFLUIDS
Кл.слова (ненормированные):
ferrihydrite nanoparticles -- Klebsiella oxytoca bacteria -- optical microscopy -- SEM -- SAXS
Аннотация: Results of observation and preliminary analysis on morphology and structure of ferrihydrite particles produced in vivo by Klebsiella oxytoca bacteria are presented. In particular, optical microscopy, scanning electron microscopy and small angle X-ray scattering in accordance with one another point out the fractal structure of the biomineral particle surface. The effect of the bacteria age (the duration of growth) on the fractal dimension is established and characterized.

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Держатели документа:
[Balasoiu, M.] Horia Hulubei Natl Inst Phys & Nucl Engn, Bucharest, Romania
[Stolyar, S. V.
Iskhakov, R. S.
Ishchenko, L. A.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Raikher, Yu. L.] RAS, Ural Branch, Inst Continuum Media Mech, Perm 614013, Russia
[Balasoiu, M.
Kuklin, A. I.
Orelovich, O. L.
Kovalev, Yu. S.
Arzumanian, G. M.] Joint Inst Nucl Res, Dubna 141980, Russia
[Kurkin, T. S.] RAS, Inst Synthet Polymer Mat, Moscow 117393, Russia
[Stolyar, S. V.
Iskhakov, R. S.] RAS, Siberian Branch, Inst Phys, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Balasoiu, M.; Stolyar, S. V.; Столяр, Сергей Викторович; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Ishchenko, L. A.; Raikher, Y. L.; Kuklin, A. I.; Orelovich, O. L.; Kovalev, Y. S.; Kurkin, T. S.; Arzumanian, G. M.
}
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Structural investigation of biogenic ferrihydrite nanoparticles dispersion / M. . Balasoiu [et al.] // Optoelectron. Adv. Mater.-Rapid Commun. - 2010. - Vol. 4, Is. 12. - P. 2136-2139. - Cited References: 21. - The financial support from the Grants No.224 it.7 and No.56 it.5 of the Romanian Governmental Plenipotentiary at JINR and the support from the JINR theme No. 04-4-1069-2009/2011 are acknowledged. S.S. Abramchyuk (Advanced Technologies Center, Moscow) for the HRTEM images is acknowledged. . - ISSN 1842-6573

РУБ Materials Science, Multidisciplinary + Optics
Рубрики:
S-LAYER PROTEINS
   METAL NANOPARTICLES
   BIOLOGICAL SYNTHESIS
   BIOSYNTHESIS
   MICROORGANISMS
   FUNGI
Кл.слова (ненормированные):
Bacterial nanoparticles -- Ferrihydrite -- Small angle X-ray scattering -- High-resolution electron microscopy
Аннотация: Structural properties of biogenic ferrihydrite nanoparticles produced by bacteria Klebsiella oxytoca are investigated. Investigations of morphology and size of particles dispersed in water by means of high-resolution transmission electron microscopy and small angle X-ray scattering measurements were performed. By model calculations followed by fitting procedure the structural parameters of a cylinder of radius R = 4.87 +/- 0.02 nm and height L = 2.12 +/- 0.04 nm are obtained.

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Держатели документа:
[Balasoiu, M.
Kuklin, A. I.
Soloviov, D. V.
Arzumanian, G. M.] Joint Inst Nucl Res, Dubna 141980, Russia
[Ischenko, L. A.
Stolyar, S. V.
Iskhakov, R. S.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Raikher, Y. L.] RAS, Ural Branch, Inst Continuum Media Mech, Perm 614013, Russia
[Kurkin, T. S.] RAS, Inst Synthet Polymer Mat, Moscow 117393, Russia
[Balasoiu, M.
Aranghel, D.] Natl Inst Phys & Nucl Engn, Bucharest, Romania
[Stolyar, S. V.
Iskhakov, R. S.] RAS, Siberian Branch, Inst Phys, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Balasoiu, M.; Ischenko, L. A.; Stolyar, S. V.; Столяр, Сергей Викторович; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Raikher, Y. L.; Kuklin, A. I.; Soloviov, D. V.; Kurkin, T. S.; Aranghel, D.; Arzumanian, G. M.
}
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Mossbauer Investigation of Temperature Transformations in Bacterial Ferrihydrite / S. V. Stolyar [et al.] // Phys. Solid State. - 2011. - Vol. 53, Is. 1. - P. 100-104, DOI 10.1134/S1063783411010306. - Cited References: 10. - This study was supported by the Federal Agency for Science and Innovation of the Russian Federation within the framework of the Russian Federal Target Program "Scientific and Scientific-Pedagogical Personnel of the Innovative Russia" for 2009-2013 and the Russian Foundation for Basic Research (project no. 09-04-98038-r_sibir'_a). . - ISSN 1063-7834

РУБ Physics, Condensed Matter

Аннотация: Ferrihydrite nanoparticles formed as a result of the microorganism activity have been studied using Mossbauer spectroscopy, X-ray powder diffraction analysis, and X-ray fluorescence analysis. Three positions of trivalent iron with nonoverlapping ranges of quadrupole splittings have been revealed in bacterial ferrihydrite: QS{Fe(3+)(1)} = 0.49-0.83 mm/s, QS{Fe(3+)(2)} = 0.84-1.10 mm/s, and QS{Fe(3+)(3)} = 1.25-1.73 mm/s. It has been experimentally demonstrated that the Fe(3+)(3) positions are the centers of nucleation of the hematite phase in the course of heat treatment.

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Держатели документа:
[Stolyar, S. V.
Bayukov, O. A.
Iskhakov, R. S.
Ishchenko, L. A.
Yakovchuk, V. Yu.
Piksina, O. E.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Stolyar, S. V.
Bayukov, O. A.
Iskhakov, R. S.
Ishchenko, L. A.
Yakovchuk, V. Yu.
Pozdnyakov, A. I.] Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
[Ladygina, V. P.] Russian Acad Sci, Siberian Branch, Presidium Krasnoyarsk Sci Ctr, Int Res Ctr Extreme States Organism, Krasnoyarsk 660036, Russia
[Dobretsov, K. G.] Joint Stock Co Russian Railways RZhD, Railway Clin Hosp Krasnoyarsk Stn, Krasnoyarsk 660021, Russia
ИФ СО РАН
КНЦ СО РАН
Siberian Federal University, Svobodnyi pr. 79, Krasnoyarsk 660041, Russian Federation
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, Krasnoyarsk 660036, Russian Federation
International Research Center for Extreme States of the Organism, Presidium of Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, Krasnoyarsk 660036, Russian Federation
Railway Clinical Hospital at the Krasnoyarsk station, Joint Stock Company Russian Railways (RZhD), pr. Mira 154, Krasnoyarsk 660021, Russian Federation

Доп.точки доступа:
Stolyar, S. V.; Столяр, Сергей Викторович; Bayukov, O. A.; Баюков, Олег Артемьевич; Ladygina, V. P.; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Ishchenko, L. A.; Yakovchuk, V. Y.; Dobretsov, K. G.; Pozdnyakov, A. I.; Piksina, O. E.
}
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Mechanism of the formation of an uncompensated magnetic moment in bacterial ferrihydrite nanoparticles / D. A. Balaev [et al.] // JETP Letters. - 2013. - Vol. 98, Is. 3. - P. 139-142DOI 10.1134/S0021364013160029
Аннотация: The magnetic properties of antiferromagnetic nanoparticles of FeOOH · nH2O with sizes of 3–7 nm, which are products of vital functions of Klebsiella oxytoca bacteria, have been studied. Particles exhibit a superparamagnetic behavior. The characteristic blocking temperature is 23 K. Analysis of the magnetization curves shows that the mechanism of the formation of the uncompensated magnetic moment of particles is the random decompensation of magnetic moments of Fe3+ ions both on the surface and in the bulk of the antiferromagnetic particle. In this mechanism, the exchange coupling between the uncompensated magnetic moment of the particle and its antiferromagnetic “core” is implemented. It has been found that the temperature dependence of the uncompensated magnetic moment has the form 1 — constT 2.

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Публикация на русском языке Механизм формирования нескомпенсированного магнитного момента в наночастицах ферригидрита бактериального происхождения. - [S. l. : s. n.]

Держатели документа:
Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660041, Russia
Russian Acad Sci, Siberian Branch, Int Res Ctr Studies Extreme States Organism, Presidium Krasnoyarsk Res Ctr, Krasnoyarsk 660036, Russia;

Доп.точки доступа:
Balaev, D. A.; Балаев, Дмитрий Александрович; Dubrovskii, A. A.; Дубровский, Андрей Александрович; Krasikov, A. A.; Stolyar, S. V.; Столяр, Сергей Викторович; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Ladygina, V. P.; Khilazheva, E. D.
}
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Biogenic ferrihydrite nanoparticles doped with gadolinium [Текст] / S. V. Stolyar [и др.] // V Euro-Asian simposium "Trend in MAGnetism": Nanomagnetism : abstracts. - Vladivostok : FEFU, 2013. - P232 . - ISBN 978-5-7444-3124-2

Доп.точки доступа:
Stolyar, S. V.; Столяр, Сергей Викторович; Bayukov, O. A.; Баюков, Олег Артемьевич; Ladygina, V. P.; Ладыгина, Валентина Петровна; Ishchenko, L. A.; Ищенко Л. А.; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Euro-Asian Symposium "Trends in MAGnetism": Nanomagnetism(5 ; 2013 ; Sept. ; 15-21 ; Vladivostok)
}
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Механизм формирования нескомпенсированного магнитного момента в наночастицах ферригидрита бактериального происхождения / Д. А. Балаев [и др.] // Письма в Журн. эксперим. и теор. физ. - 2013. - Т. 98, Вып. 3. - С. 160-164DOI 10.7868/S0370274X13150046
Аннотация: Исследованы магнитные свойства антиферромагнитных (AF) наночастиц ферригидрита FeOOH• nH2O размером 3-7 нм, являющихся продуктом жизнедеятельности бактерий Klebsiella oxitoca. Частицы демонстрируют суперпарамагнитное поведение. Характерная температура блокировки составляет 23 K. Анализ кривых намагничивания показал, что механизмом формирования нескомпенсированного магнитного момента частиц является случайная раскомпенсация магнитных моментов ионов Fe3+ как на поверхности, так и в объеме AF-частицы. При этом реализуется обменная связь между нескомпенсированным магнитным моментом частицы и ее AF "ядром". Установлено, что температурная зависимость нескомпенсированного магнитного момента подчиняется закону {\sim} (1-\text{const}T. ).

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Переводная версия Mechanism of the formation of an uncompensated magnetic moment in bacterial ferrihydrite nanoparticles. - [Б. м. : б. и.]

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

Доп.точки доступа:
Балаев, Дмитрий Александрович; Balaev, D. A.; Дубровский, Андрей Александрович; Dubrovskii, A. A.; Красиков, Александр Александрович; Столяр, Сергей Викторович; Stolyar S.V.; Исхаков, Рауф Садыкович; Iskhakov, R. S.; Ладыгина, Валентина Петровна; Хилажева, Е. Д.
}
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Gurevich, Y. L.
Self-assembly of superparamagnetic ferrihydrite nanoparticles / Y. L. Gurevich, Yu. I. Mankov, R. G. Khlebopros // Dokl. Phys. - 2013. - Vol. 58, Is. 11. - P. 478-481, DOI 10.1134/S1028335813110104. - Cited References: 15. - This work was supported by the Russian Foundation for Basic Research, project nos. 08-08-00427_a and 10-08-00278_a, and by the Siberian Branch, Russian Academy of Sciences, Integration project no. 21. . - ISSN 1028-3358

РУБ Mechanics + Physics, Multidisciplinary
Рубрики:
CHAINS
CLUSTERS
Аннотация: A study was conducted to estimate the possibility of formation of chains of superparamagnetic nanoparticles of iron oxyhydroxides synthesized in a bacteria culture. The self-assembly of biogenic nanoparticles distinguished by low values of magnetization and small sizes is assumed to proceed due to the forces of magnetic dipole dipole interaction as an initial mechanism of aggregation and exchange-interaction forces, which provide the stability of chains. The microphotographs demonstrate the self-assembly of anisotropic cobalt-doped ferrihydrite nanoparticles in aggregates of ellipsoidal shape with sizes of about 550 × 300 nm and a platelike shape of 50-100 nm thick. The aggregates, in turn, are combined from blocks, which include a restricted number of nanoparticles of about 5 nm in diameter and have the shape of rods of 50-100 × 12 nm in size. The energy of degaussing fields of chains is reasonably high, which forces them to form two and three dimensional structures in which the compensation of such fields is provided.

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Публикация на русском языке Самосборка суперпарамагнитных наночастиц ферригидрита. - [S. l. : s. n.]

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

Доп.точки доступа:
Mankov, Yu.I.; Маньков, Юрий Иннокентьевич; Khlebopros, R. G.; Хлебопрос, Рэм Григорьевич; Russian Foundation for Basic Research [08-08-00427_a, 10-08-00278_a]; Siberian Branch, Russian Academy of Sciences, Integration project [21]
}
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10.

Гуревич, Юрий Леонидович.
Самосборка суперпарамагнитных наночастиц ферригидрита / Ю. Л. Гуревич, Ю. И. Маньков, Р. Г. Хлебопрос // Доклады Академии наук. - 2013. - Т. 453, № 3. - С. 268-271DOI 10.7868/S0869565213330098

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Переводная версия Self-assembly of superparamagnetic ferrihydrite nanoparticles. - [Б. м. : б. и.]

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

Доп.точки доступа:
Маньков, Юрий Иннокентьевич; Man'kov, Yu.I.; Хлебопрос, Рэм Григорьевич; Khlebopros, R. G.
}
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