Enhanced corrosion resistance and bio-performance of Al 2 O 3 coated NiTi alloy improved by polydopamine-induced hydroxyapatite mineralization
作者: Xiyuan WangFu LiuYing SongQiu Sun
作者单位: 1School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, PR China
2School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, PR China
刊名: Surface & Coatings Technology, 2019, Vol.364 , pp.81-88
来源数据库: Elsevier Journal
DOI: 10.1016/j.surfcoat.2019.01.109
关键词: NiTi alloyPolydopamineBiomimetic mineralizationCathodic plasma electrolytic depositionCorrosion resistanceBioactivityBiocompatibility
英文摘要: Abstract(#br)Corrosion resistance and bio-performance of NiTi alloy is clinically important for osteointegrated implants with long-term performance. Though Al 2 O 3 coating fabricated on NiTi alloy by the cathodic plasma electrolytic deposition (CPED) could effectively reduce the Ni ions release and improve the corrosion resistance to a large extent, the bioinert nature of Al 2 O 3 coating will inevitably limit the potential for orthopaedic applications. In this study, hydroxyapatite (HA) was coated on the Al 2 O 3 coating via polydopamine (PDA) induced biomimetic mineralization to improve the corrosion resistance, biocompatibility and in vitro bioactivity of the Al 2 O 3 -coated NiTi alloy.(#br)The surface morphology, phase composition, corrosion resistance, biocompatibility, and in...
全文获取路径: Elsevier  (合作)
影响因子:1.941 (2012)

  • corrosion 腐蚀
  • resistance 抵抗
  • electrolytic 电解的
  • improved 改进
  • mineralization 成矿酌
  • alloy 合金
  • hydroxyapatite 羟磷灰石层析
  • plasma 深绿玉髓
  • coated 涂渍的
  • performance 性能