High-crystal-quality nanoferrites with short ligands, like oleic acid, have been found to improve sensitivity and spatial resolution in magnetic particle imaging (MPI) due to their ability to form uniaxial assemblies.
A one-pot thermal decomposition method was developed to create magnetic nano-objects (MNOs) that show strong magnetic interactions and reproducibility, with sizes ranging from 12 to 27 nm, affecting their response and chain formation capabilities.
The study revealed that these ferrite MNOs significantly enhance signal and spatial resolution compared to existing MPI tracers, with results indicating the importance of optimizing the frequency and field amplitude for effective imaging and thermal performance.