Magnetic nanomaterials and their hybrids for magnetic hyperthermia

Magnetic nanoparticles are important for a wide range of biomedical applications, including magnetic separation, target drug delivery, magnetic resonance imaging contrast enhancement, and magnetic hyperthermia. Particularly, magnetic hyperthermia has been introduced to the medical community as an alternative technique for treating tumors using magnetic nanoparticles. Magnetic hyperthermia uses the heat produced by magnetic nanoparticles (MNPs) exposed to an alternating magnetic field. This topic has gained prominence in nanomedicine due to its numerous benefits, including high biosecurity, deep tissue penetration, and selective targeting of tumors. Recent experimental studies indicate that nanocomposite ferrite and ferromagnetic materials produce nanoscale heat effects without causing macroscopic temperature rises. Depending on the element composition, coating, and targeting agent, magnetic nanomaterials can be directed toward specific tumor types and sites. The development of MNPs with increased thermal efficiency and biocompatibility is key to increasing their use in biomedical applications. The purpose of this chapter is to provide a comprehensive analysis of magnetic hyperthermia for improving antitumor therapeutic efficacy, which is essential for guiding researchers and helping to shape the future of magnetic nanohybrids in medicine.