Magnetically "Programming" Cobalt-Doped Iron Oxide Nanoparticles for Localized Induction Heating: Triggering a Collective Effect of Magnetic Moment Alignment on Demand.

ABSTRACT: Induction heating, a contactless and efficient method for generating heat via alternating magnetic fields (AMFs), has evolved from simple thermal applications to precise process control in fields like catalysis, self-healing, and debonding. Magnetic nanoparticles (NPs) play a key role as heat mediators, with heating properties adjustable via composition, size, and interactions. However, spatially precise heat control remains challenging. Current strategies rely on external AMF adjustments or material modifications, but lack an inherent mechanism to predefine which particles or regions will be activated for induction heating, limiting applicability in structured materials or complex environments. Here, it is shown that pre-magnetizing cobalt-doped iron oxide NPs with a static magnetic field

SUBMITTER: Raczka T 

PROVIDER: S-EPMC12510280 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature