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Huan, Z. (author), Fratila-Apachitei, L.E. (author), Apachitei, I. (author), Duszczyk, J. (author)In this study, a porous oxide layer was formed on the surface of 316L stainless steel (SS) by combining Ti magnetron sputtering and plasma electrolytic oxidation (PEO) with the aim to produce a polymer-free drug carrier for drug eluting stent (DES) applications. The oxidation was performed galvanostatically in Na3PO4 electrolyte. The surface...journal article 2012