Preparation of magnetic polylactic acid microspheres and investigation of its releasing property for loading curcumin

► We prepare magnetic polylactic acid microspheres loading curcumin. ► The classical oil-in-water emulsion solvent-evaporation method is used. ► The magnetic microspheres are regularly spherical with a diameter of 0.55-0.75 μm. ► They show a certain sustained release effect on in vitro drug releasing.