Investigation of polymer magnetic microspheres

The physical properties and structure of collagen and polystyrene microspheres filled with magnetite nanoparticles are investigated. Uniform distribution of magnetite nanoparticles on all volumes of microsphere is shown. It is shown that the mean size of nanoparticles, before and after introducing polymer matrix, did not vary. Magnetite nanoparticles are not aggregated during their introduction in polymer microspheres.