Induction heating studies of combustion synthesized MgFe{sub 2}O{sub 4} nanoparticles for hyperthermia applications Khot, V. M.; Salunkhe, A. B.; Thorat, N. D.; Phadatare, M. R. [Center for Interdisciplinary Research, D.Y. Patil University, Kolhapur 416006 (India)]; Pawar, S.H., E-mail: wish_khot@yahoo.co.in [Center for Interdisciplinary Research, D.Y. Patil University, Kolhapur 416006 (India)] 36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; ABSORPTION; COMBUSTION; HEATING; HYPERTHERMIA; HYSTERESIS; INTERACTIONS; MAGNETIC FIELDS; MAGNETIZATION; NANOSTRUCTURES; PARTICLES; SOLIDS; SYNTHESIS The structural, magnetic and ac magnetically induced heating characteristics of combustion synthesized MgFe{sub 2}O{sub 4} nanoparticles have been investigated for application in magnetic particle hyperthermia. As prepared nanoparticles showed ferrimagnetic behavior at room temperature with magnetization of about 33.83 emu/g at ±15 kOe. The solid state MgFe{sub 2}O{sub 4} nanoparticles exhibited specific absorption rate (SAR) of about 297 W/g at physiological safe range of frequency and amplitude. The increase in SAR and heating temperature in ac magnetic field was thought to be due to enhancement in magnetic hysteresis loss caused by dipole–dipole interactions in combustion synthesized MgFe{sub 2}O{sub 4} nanoparticles. - Highlights: ► Highly crystalline pure MgFe{sub 2}O{sub 4} nanoparticles were synthesized by low temperature combustion. ► Effect of ac magnetic field and nanoparticles concentration on heating characteristics of MgFe{sub 2}O{sub 4} nanoparticles was studied. ► Combustion synthesized MgFe{sub 2}O{sub 4} nanoparticles show highest specific absorption rate of 297 Wg{sup −1}. ► The reported high value of specific absorption rate is advantageous for its use in magnetic particle hyperthermia. Available from http://dx.doi.org/10.1016/j.jmmm.2012.12.010 Netherlands 2013-04-15 English Journal Article Journal Name: Journal of Magnetism and Magnetic Materials; Journal Volume: 332; Other Information: Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA) Medium: X; Size: page(s) 48-51 https://doi.org/10.1016/J.JMMM.2012.12.010 PII: S0304-8853(12)00984-5 [] 332 Journal ID: ISSN 0304-8853; CODEN: JMMMDC; Other: PII: S0304-8853(12)00984-5; TRN: NL14R6473098395 NLN 2014-11-18 22277040