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dc.creatorLakić, Mladen
dc.creatorAnđelković, Ljubica
dc.creatorŠuljagić, Marija
dc.creatorVulić, Predrag
dc.creatorPerić, Marko R.
dc.creatorIskrenović, Predrag
dc.creatorKrstić, Ivan
dc.creatorKuraica, Milorad M.
dc.creatorNikolić, Aleksandar S.
dc.date.accessioned2019-06-04T09:17:58Z
dc.date.available2019-06-04T09:17:58Z
dc.date.issued2019
dc.identifier.issn0925-3467 (print)
dc.identifier.urihttps://linkinghub.elsevier.com/retrieve/pii/S0925346719301995
dc.identifier.urihttp://vinar.vin.bg.ac.rs/handle/123456789/8114
dc.description.abstractLight-transmitting measurements of white light and a consequentially chosen laser beam of 655 nm propagating through citrate- and oleate-coated CoFe 2 O 4 , FeFe 2 O 4 and MgFe 2 O 4 nanoparticles under the influence of an external magnetic field were presented. New experimental settings were developed for the optical study of ferrites’ behavior in ferrofluid with the applied magnetic field strength within the 30–400 mT range. A magnetic field-induced change of light transmittance occurred and a precipitation of all studied samples was obtained. Optical investigations of ferrofluid suspensions revealed that, contrary to the linear aggregates of colloidal CoFe 2 O 4 and FeFe 2 O 4 , spheroidal aggregates were formed in the case of MgFe 2 O 4 . In all three cases, the surface modification resulted in decreased dipole–dipole interactions between ferrite cores, and thus, less precipitates were noticed. All oleate-coated nanoparticles have demonstrated weaker magnetic responses compared to the citrate-encapsulated samples. The aggregation of nanoparticles potentially increases cytotoxicity. Regarding non-linear clustering of MgFe 2 O 4 suspensions, it can be concluded that its excretion from the organism may likely be easier and faster when used in diagnosis and/or therapy. Therefore, more attention should be paid to the lowly toxic MgFe 2 O 4 regarding its medical application. © 2019en
dc.language.isoen
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172035/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/171034/RS//
dc.rightsrestrictedAccess
dc.sourceOptical Materials
dc.subjectAggregationen
dc.subjectExternal magnetic fielden
dc.subjectFerrofluiden
dc.subjectHard and soft ferritesen
dc.subjectSpectral analysisen
dc.titleOptical evidence of magnetic field-induced ferrofluid aggregation: Comparison of cobalt ferrite, magnetite, and magnesium ferriteen
dc.typearticleen
dc.rights.licenseARR
dcterms.abstractКураица, Милорад М.; Николић, Aлександар С.; Лакић, Младен; Aнђелковић, Љубица; Шуљагић, Марија; Вулић, Предраг; Крстић, Иван; Перић, Марко; Искреновић, Предраг;
dc.citation.volume91
dc.citation.spage279
dc.citation.epage285
dc.identifier.wos000470938800040
dc.identifier.doi10.1016/j.optmat.2019.03.031
dc.type.versionpublishedVersion
dc.identifier.scopus2-s2.0-85063323726


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