The thermic response of biogenic magnetite suspensions to frequencies in the (0.1-3) GHz range

Abstract

A water-based suspension of biogenic magnetite nanocrystals extracted from cultured magnetotactic bacteria was exposed to a set of electromagnetic stimuli in the range (0.1-3) GHz. Controlled exposure was provided and the heating rate of the suspension was measured in each case, providing a comparison between the thermal response of this suspension and pure water, in order to quantify the role of biogenic magnetite in absorbing the electromagnetic field.