| abstract |
Magnetic resonance systems, devices, methods, and compositions are provided. A nuclear magnetic resonance imaging composition includes, but is not limited to, a plurality of ferromagnetic microstructures configured to generate a time-invariant magnetic field within at least a portion of one or more internal surface-defined voids. In an embodiment, at least one of the plurality of ferromagnetic microstructures includes one or more targeting moieties attached thereof. |