A biocompatible and bio-inert device is disclosed along with a method of making same. The device includes multiple layers of materials, preferably at least on layer of Al.sub.2O.sub.3, and an exterior amorphous layer, preferably TiO.sub.2.
CONTRACTUAL ORIGIN OF THE INVENTION
 The United States Government has rights in this invention pursuant to Contract No. W-31-109-ENG-38 between the U.S. Department of Energy (DOE) and The University of Chicago representing Argonne National Laboratory.