Simulation of a passive position control for ferromagnetic particles with multiple Halbach rings

Abstract Various types of magnetic nanoparticles have been developed for a range medical applications and some the potential to treat diseases. In this paper, new method controlling position these particles by changing field surrounding them using three Halbach ringsis investigated with aid simulation. The inner ring controls direction, two outer rings can keep group together. simulation, is calculated analytically each time step movement simulated applying corresponding forces. These result from manipulable external field, between particles, Lennard-Jones model attractive interactions drag. we show how are manipulated Levenberg-Marquard algorithm develop closedloop control grouped manipulating inside angular rings.