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The Effect of Particle Concentration on the Heating Rate of Ferrofluids for Magnetic Hyperthermia


The complex magnetic susceptibility χ(f) = χ′(f) - i χ″(f), of a ferrofluid sample with magnetite particles dispersed in kerosene and stabilized with oleic acid, over the range 0.1 GHz to 6 GHz, was determined. The initial sample has been successively diluted with kerosene (with a dilution rate of 2/3), thus obtaining further three samples. Using the complex magnetic susceptibility measurements of each sample, the frequency field and particle concentration dependencies of the heating rate of the ferrofluid samples, were analyzed. The results show the possibility of using the heating rate of ferrofluid samples with different particle concentrations, in hyperthermia applications.

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Elemental composition of surface soils in Nature Park Shumen Plateau and Shumen City, Bulgaria

.1016/0048-9697(95)04785-9 [8.] Djingova, R.; Wagner, G.; Kuleff, I., Screening of heavy metal pollution in Bulgaria using Populus nigra ‘Italica’, Sci Total Environ, 1999 , 234 :175-184. [9]. Cervi, E.C.; Saraiva da Costa, A.C.; Granemann de Souza Junior, I., Magnetic susceptibility and the spatial variability of heavy metals in soils developed on basalt, Journal of Applied Geophysics , 2014 , 111 :377-383. [10]. Citterio, S.; Aina, R.; Labra, M.; Ghiani, A.; Fumagalli, P

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