Surface stabilization treatment enhances initial cell viability and adhesion for biodegradable zinc alloys

Galit Katarivas Levy, Alon Kafri, Yvonne Ventura, Avi Leon, Razi Vago, Jeremy Goldman, Eli Aghion

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

Zinc-based alloys hold promise as next generation biodegradable implants. Although zinc implants exhibit excellent biocompatibility in vivo, they have been found to inhibit cell attachment and viability under in vitro conditions. In order to clarify the cell response disparity and improve the biocompatibility of zinc implant materials, Zn-1Mg and Zn-1Mg-0.5Ca alloys underwent surface stabilization treatment in cell culture medium. Surface processing resulted in a stable surface oxide film of ∼300 nm thickness. The stability of the oxide layer substantially increased the viability of cells in both direct and indirect contact assays. It is consequently believed that the surface film characteristics of zinc implants may be an important determinant of biocompatibility.

Original languageEnglish
Pages (from-to)130-133
Number of pages4
JournalMaterials Letters
Volume248
DOIs
StatePublished - 1 Aug 2019

Keywords

  • Biocompatibility
  • Biodegradable zinc-based alloy
  • Cytotoxicity
  • In-vitro testing
  • Surface treatment

ASJC Scopus subject areas

  • Materials Science (all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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