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Nanoparticle magneticmaterialsaresuitableformultiplemodernhighendmedicalapplicationsliketargeteddrugdelivery,genetherapy,hyperthermiaandMRthermometryimaging.Majorityoftheseโปรแกรมประยุกต์ areconfined touseofMn – Zn ferritenanoparticles Thesenanoparticlesarenormallyleftinbodyaftertheirrequisiteapplication PreparingthesenanoparticlesisusuallyamuchinvolvedjobHoweverwiththedevelopmentofthesimpletechniqueMnxZn1 xFe2O4 เก็บกัก couldbepreparedกับ muchease XFe2O4 ThenanoparticlesofMnxZn1 ด้วย (x¼1.0, 0.7, 0.5, 0.3, 0.0) werepreparedandirradiatedwithgammaradiationofvariousintensitiesrangingbetween500Rto10, 000R, afterap-propriatestructuralandmagneticcharacterization Irradiatedsampleswereinvestigatedforstructuralและ magneticproperties, aswellasforstructuralstabilityandcationdistributionTheirradiatednanoparticlesexhibitedstructuralstabilitywithvariedcationdistributionandmagneticคุณสมบัติ dependentongammaradiationdose Surprisinglysamplesalsoexhibitedquenchingoflatticeparameterandparticlesize Thechangesintroducedinthecationdistribution, latticeconstant, particlesizeandmagneticpropertieswerefoundtobeirreversiblewithtimelapseandwereofpermanentnatureexhibitinggoodstabilityevenafterseveralmonths Thustheusefulpropertiesofnanoparticlescouldbeenhancedonmodifyingthecationdistributioninsidethenanoparticlesbyapplicationofgammaradiation
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