Radiation Stability of the BSA Modified Biocompatible Magnetic Fluid
N. Tomašovičováa, I. Haysakb, J. Kováča, M. Kubovčíkováa, V. Závišováa, M. Timkoa, A. Okunevb, A. Zorkovskác, P. Kopčanskýa
aInstitute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovakia
bUzhorod National University 46 Pidhirna St., Uzhorod 88000, Ukraine
cInstitute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 040 01 Košice, Slovakia
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The aim of the presented work was to investigate the stability of biocompatible magnetic fluid, i.e. water-based magnetic fluid containing magnetite nanoparticles stabilized by surfactant sodium oleate and modified by bovine serum albumin (BSA) after electron irradiation. Samples with the same concentration of Fe3O4 but different mass ratio BSA/Fe3O4 (w/w=0.25, 1.0 and 2.5) were studied. The electron irradiation caused about 10% reduction of the saturation magnetization in the samples with w/w BSA/Fe3O4 ratio of 0.25 and less than 5% in the samples with w/w BSA/Fe3O4 ratio of 1 and 2.5.

DOI: 10.12693/APhysPolA.126.262
PACS numbers: 75.50.Mm, 61.30.Gd, 64.70.Md