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Application of Magnetosomes in Magnetic Hyperthermia

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dc.contributor.authorUsov, N. A.
dc.contributor.authorGubanova, E. M.
dc.contributor.authorУсов, Николай Александрович
dc.contributor.authorГубанова, Елизавета Михайловна
dc.date.accessioned2024-11-27T07:30:31Z
dc.date.available2024-11-27T07:30:31Z
dc.date.issued2020
dc.description.abstractNanoparticles, specifically magnetosomes, synthesized in nature by magnetotactic bacteria, are very promising to be usedin magnetic hyperthermia in cancer treatment. In this work, using the solution of the stochastic Landau-Lifshitz equation, we calculate the specific absorption rate (SAR) in an alternating (AC) magnetic field of assemblies of magnetosome chains depending on the particle sizeD, the distance between particles in a chaina, and the angle of the applied magnetic field with respect to the chain axis. The dependence of SAR on thea/Dratio is shown to have a bell-shaped form with a pronounced maximum. For a dilute oriented chain assembly with optimally chosena/Dratio, a strong magneto-dipole interaction between the chain particles leads to an almost rectangular hysteresis loop, and to large SAR values in the order of 400-450 W/g at moderate frequenciesf= 300 kHz and small magnetic field amplitudesH(0)= 50-100 Oe. The maximum SAR value only weakly depends on the diameter of the nanoparticles and the length of the chain. However, a significant decrease in SAR occurs in a dense chain assembly due to the strong magneto-dipole interaction of nanoparticles of different chains.
dc.identifier.citationUsov, N. A. Application of Magnetosomes in Magnetic Hyperthermia / Usov, NA, Gubanova, EM // Nanomaterials. - 2020. - 10. - № 7. - 10.3390/nano10071320
dc.identifier.doi10.3390/nano10071320
dc.identifier.urihttps://www.doi.org/10.3390/nano10071320
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85090707231&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000558513700001
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/22266
dc.relation.ispartofNanomaterials
dc.titleApplication of Magnetosomes in Magnetic Hyperthermia
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue7
oaire.citation.volume10
relation.isAuthorOfPublication94d065e4-7f84-46b3-845e-8ae5d2f01bd5
relation.isAuthorOfPublication28a5bfc1-328f-4c71-b4e1-c9f4498b87dd
relation.isAuthorOfPublication.latestForDiscovery94d065e4-7f84-46b3-845e-8ae5d2f01bd5
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