Radiation Stability of the BSA Modified Biocmpatible Magnetic Fluid

Abstract

The aim of the presented work was to investigate the stability of biocompatible fluid, i.e. water-based magnetic fluid containing magnetic nanoprticles stabilized by sufractant 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.