Role of nanoparticle interaction in magnetic heating
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Research Letter
Role of nanoparticle interaction in magnetic heating Ramanujam Lenin, Ajit Singh, and Chandan Bera, Institute of Nano Science and Technology, Habitat Center, Phase-X, Mohali, Punjab 160062, India Address all correspondence to Chandan Bera at [email protected] (Received 4 April 2019; accepted 7 June 2019)
Abstract Magnetic nanoparticles have many potential applications in therapeutics and drug delivery. Heating by magnetic nanoparticles for hyperthermia application has gained tremendous popularity as a non-invasive treatment for tumor ablation. The heating effect of magnetic nanoparticles at different concentrations (1–10 wt%) in the fluid is investigated by varying the alternating magnetic field (60–260 Oe). The observed temperature rise (ΔT ) shows an unusual increase with applied field in a higher nanoparticle concentration. In contrast to the previous model, the present study shows that temperature rise is more rapid in the higher particle concentration (∼10 wt%) and low applied field (
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