This paper establishes a simple analytical formula-based model of magnetization of single-domain magnetic nanoparticles, taking into account the effect of a demagnetizing field. This makes it easier to calculate magnetic induction intensity for magnetic nanoparticles. The magnetization model is used to simulate the magnetic properties of Fe-Co-Ni alloy nanoparticles under various conditions. The results show that the demagnetization field generated by magnetic nanoparticles in an external magnetic field reaches a peak value around 10 nm and decreases as temperature rises. The simplified magnetization model of single-domain magnetic nanoparticles could provide the theoretical basis for single-molecule magnetic immunoassay.
No takes yet. Share an insight, caveat, or question.
Mao et al. (2024) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: