Improved physicochemical properties and biocompatibility of stainless steel implants by PVA/ZrO2-based composite coatings

Pei Jung Lee, Chia Che Ho, Chii Shyang Hwang, Shinn Jyh Ding

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

The aim of this study was to improve the physicochemical properties and biocompatibility of stainless steel used in medical applications. Polyvinyl alcohol (PVA) was added to a zirconium oxynitrate solution to form a polymer complex solution, which was then coated on the stainless steel substrates and heat treated to produce a thin film. The samples were characterized using various surface analysis techniques, electrochemical corrosion experiments, and biocompatibility assays. The results indicated that the amorphous PVA/ZrO2-based composite coatings were dense and uniform structure featured with few defects. Increased PVA contents yielded higher film thicknesses, which were correlated with the resulting solution viscosities. The PVA/ZrO2-based composite coatings on stainless steel substrates resulted in enhanced corrosion protection and displayed excellent adhesion and hydrophilicity. In addition, the PVA/ZrO2-based composite coatings improved the biocompatibility of the stainless steel substrates compared with the coating without PVA. In summary, the PVA/ZrO2-based composite coatings can be considered an effective surface modification of stainless steel implants.

Original languageEnglish
Pages (from-to)374-380
Number of pages7
JournalSurface and Coatings Technology
Volume258
DOIs
Publication statusPublished - 2014 Nov 15

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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