Unraveling the Mn²⁺ substitution effect on the anisotropy control and magnetic hyperthermia of Mn_<i>x</i>Fe_3-<i>x</i>O₄ nanoparticles.

ABSTRACT: Composition is a key parameter to effectively tune the magnetic anisotropy of magnetic nanoparticles, which in turn can modulate their structural-magnetic properties and final applications. The Mn²⁺ content of manganese ferrite nanoparticles (Mn_xFe_3-xO₄) deeply impacts their structure, anisotropy, magnetism, and their heating capacity. However, a direct correlation between Mn²⁺ content, magnetic properties and heating efficiency is not yet clear. Herein, we report the synthesis of a wide range of Mn_xFe_3-xO₄ with x = 0.14 to 1.40, with similar polyhedral morphologies and sizes (13 to 15 nm). By varying the Mn²⁺ content (in the range of x = 0.0 up to 0.

SUBMITTER: Odio OF 

PROVIDER: S-EPMC12319668 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature