Construction of tantalum/poly(ether imide) coatings on magnesium implants with both corrosion protection and osseointegration properties.

ABSTRACT: Poly(ether imide) (PEI) has shown satisfactory corrosion protection capability with good adhesion strength as a coating for magnesium (Mg), a potential candidate of biodegradable orthopedic implant material. However, its innate hydrophobic property causes insufficient osteoblast affinity and a lack of osseointegration. Herein, we modify the physical and chemical properties of a PEI-coated Mg implant. A plasma immersion ion implantation technique is combined with direct current (DC) magnetron sputtering to introduce biologically compatible tantalum (Ta) onto the surface of the PEI coating. The PEI-coating layer is not damaged during this process owing to the extremely short processing time (30 s), retaining its high corrosion protection property and adhesion stability. The Ta-implanted laye

SUBMITTER: Cheon KH 

PROVIDER: S-EPMC7595939 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature