Magneto-acoustic concentration tomography of magnetic nanoparticles (MNPs) with magnetic induction (MACT-MI) is an emerging method for magnetic particle imaging based on the magneto-acoustic coupling effect. However. the limitation of this method is that the concentration of magnetic nanoparticles in the human body should be regulated to prevent excessive metabolic pressure on the kid... https://foldlyers.shop/product-category/ferrites/