期刊文献+

Mg-Fe LDH sealed PEO coating on magnesium for biodegradation control,antibacteria and osteogenesis 被引量:4

原文传递
导出
摘要 Attempt of developing bio-safety and functional layered double hydroxides(LDHs)modifed plasma electrolytic oxidation(PEO)coatings,has become a hotspot in the protection of magnesium(Mg)based biomedical implants.In the present work,Mg-Fe LDH flms with different Fe contents were fabricated on PEO coating via a novel two-step method:frstly,the Fe OOH flms were prepared by immersing PEO sample in Fe^(2+)-containing solution,and then Mg-Fe LDH flms were formed by transforming the Fe OOH flms via a hydrothermal treatment in water.The highly-oriented LDH nano-sheets could enhance the anti-corrosion performance of PEO coating,which was proved by the results of electrochemical test,hydrogen evolution and corroded morphology.PEO/Mg-Fe LDH coatings showed a low hemolysis rate(less5%)than PEO coating.In addition,PEO/Mg-Fe LDH coatings were more favorable for cell adhesion and proliferation than PEO coating.Moreover,PEO/Mg-Fe LDH coatings showed good photothermal conversion property,which demonstrated the excellent rapid antibacterial effect under NIR light.In vitro culture of rat bone marrow stem cell(r BMSC)suggested that cells cultured in the extract of PEO/Mg-Fe LDH coatings had a better osteogenic activity.In vivo subcutaneous implantation test revealed that PEO/Mg-Fe LDH coatings exhibited good anti-corrosion and histocompatibility.
出处 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2022年第10期57-67,共11页 材料科学技术(英文版)
基金 fnancially supported by the National Key Research and Development Program of China(Nos.2017YFB0702600 and 2017YFB0702602) the National Natural Science Foundation of China(No.31771044) the Shanghai Committee of Science and Technology,China(Nos.20S31901200,18YF1426900 and 19JC1415500) the International Partnership Program of Chinese Academy of Sciences Grant(No.GJHZ1850)。
  • 相关文献

参考文献1

二级参考文献1

共引文献56

同被引文献52

引证文献4

二级引证文献3

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部