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Methods of magnetic control of magnetic nanoparticles (MNP). A) MNP move down a magnetic field gradient toward a clot using a permanent magnet. B) A rotating magnet is used to rotate rod-like MNP, inducing convection and improving transport of PA to a clot. C) A high frequency magnetic field induces local heating of cube-like MNP. D) A low frequency rotating magnetic field causes MNP to assemble into microwheels and roll into a thrombus. See Table 2 for details and references.
