Abstract
AbstractBy the sterolithography technique and the ferrite plating, we have fabricated a magnetic micro‐machine which coated Fe3O4. The sterolithography technique enables to form the spiral‐shape resinous templates and the ferrite plating enables to coat Fe3O4 uniformly onto these templates from an aqueous solution. The total machine weight is light because a resin of the template body is almost the same density as water. We have verified that the machines swim freely and wirelessly in water by applying a rotational magnetic field. As the machine coated with Fe3O4 has a biocompatibility, there is a possibility of medical micro‐robots which swim in human body for medical operations. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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