Unlocking the Potential of Manganese Ferrite: A Comprehensive Review of its Applications

Abstract Manganese ferrites (MnFe 2 O 4 ) are magnetic nanoparticles with a spinel structure widely employed in many different fields because of their high permeability, ease of synthesis, and spontaneous magnetization even without an applied magnetic field. Because of their high resistivity, moderate saturation magnetization, high coercivity, anisotropy, and Curie temperature, as well as their significant mechanical hardness, chemical stability, and superior redox chemistry, nano‐sized ferrites have the potential to be used in the fields of light absorption, hydrolysis, and magnetic and nonconductive materials. MnFe 2 O 4 is special among these multifunctional spinel ferrites because it exhibits remarkable magnetic properties, high chemical stability, and excellent biocompatibility. The dual presence of Mn 2+ and Fe 3+ ions provides synergistic magnetic effects, enhancing the transverse relaxivity. The MnFe 2 O 4 ‐based electrode exhibited a high specific capacitance, excellent rate capability, and good cyclic stability, indicating its suitability for energy storage devices. The superparamagnetic and high surface area of MnFe 2 O 4 enables rapid electron transfer and efficient biomolecule immobilization, enhancing biosensor sensitivity. A potential solution is to identify the limitations and suggest better nanocomposite materials that maximize the effectiveness and utility of MnFe 2 O 4 nanoferrites by enhancing their characteristics with a biocompatible overlay. This paper discusses the various applications used to generate pure and doped MnFe 2 O 4 and their structurally significant properties.