Dynamic Simulation of MNPs Particles Removed from Vessels by Micro-Nanorobots

In this study, a Spherical Magnetic Robot (SMR) was designed to remove Magnetic Nanoparticles (MNPs) particles from blood vessels by micro and nano robots, and was studied by dynamic simulation model. SMR is based on a miniaturized design that utilizes magnet drive and integrates a high permeability alloy material to achieve effective adsorption and transport of MNPs particles. In this study, multiphysics problems for vascular modeling, SMR design, motion control, and MNPs particle capture were integrated, and a simulation model was constructed using the COMSOL Multiphysics software. The results show that SMR shows excellent navigation accuracy and adsorption performance in the process of removing MNPs, which verifies the key role of high-precision magnetic field control in SMR motion and MNPs adsorption process.