The invention concerns the fields of microtechnologies, biology and medicine and relates to a method for producing mobility in immobile cells as can be used, for example, for in vivo or in vitro fertilization.The object of the present invention is to specify a method for producing mobility in individual immobile cells, with which method activity and guided mobility in previously immobile cells can be achieved.The object is attained with a method for producing mobility in immobile cells in which an immobile cell is connected to a microstructure, .wherein the microstructure is composed at least partially of magnetic materials and a non-reciprocal movement of the microstructure with the immobile cell is executed by means of a time-varying, three-dimensional external magnetic field.
