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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 1063-7834РУБ 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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