The Influence of Alternating Magnetic Field Frequency on Magneto-Thermal Behavior of Mn0.25Fe2.75O4@PANI Material

Abstract

Mn0.25Fe2.75O4@PANI material has been successfully synthesized using in-situ polymerization method. Meanwhile, Mn0.25Fe2.75O4 nanoparticles based on local sand was synthesized using the coprecipitation method. The Mn0.25Fe2.75O4@PANI sample was characterized using the instrument of X-Ray Diffraction (XRD), Fourier Transform Infrared (FTIR), Transmission Electron Microscopy (TEM), and Magneto-Thermal Test to know the structure of the material, functional group of the material, size morphology of the material, and the specific absorption rate (SAR) value. The XRD pattern of Mn0.25Fe2.75O4@PANI material was dominated by an amorphous structural pattern. The domination of PANI polymer in the Mn0.25Fe2.75O4@PANI material implicated to the decrease in the intensity of Mn0.25Fe2.75O4 nanoparticle peak. The existence of PANI polymer also impacted on the amount of aggregation of the Mn0.25Fe2.75O4 nanoparticles so that the size of the Mn0.25Fe2.75O4 particles increased from 8.4 nm (without PANI) to 30.4 nm (with PANI). Moreover, the test result using magneto-thermal instrument showed that the bigger the frequency of the alternating magnetic field, the obtained SAR value of the Mn0.25Fe2.75O4@PANI material would be bigger as well. For the frequency of 483 and 553 Hz, the SAR values of Mn0.25Fe2.75O4@PANI material was 0.81 and 3.65 W/g, respectively. Based on the SAR results, the Mn0.25Fe2.75O4@PANI material has the potential to be the media of drug delivery for cancer therapy.