Enhancing biocompatibility and corrosion resistance of biodegradable Mg-Zn-Y-Nd alloy by preparing PDA/HA coating for potential application of cardiovascular biomaterials.
Mater Sci Eng C Mater Biol Appl
; 109: 110607, 2020 Apr.
Article
en En
| MEDLINE
| ID: mdl-32228927
ABSTRACT
In this paper the poly-dopamine (PDA)/hyaluronic acid (HA) coatings with different HA molecular weight (MW, 4 × 103, 1 × 105, 5 × 105 and 1 × 106 Da) were prepared onto the NaOH passivated Mg-Zn-Y-Nd alloy aiming at potential application of cardiovascular implants. The characterization of weight loss, polarization curves and surface morphology indicated that the coatings with HA MW of 1 × 105 (PDA/HA-2) and 1 × 106 Da (PDA/HA-4) significantly enhanced the corrosion resistance of Mg-Zn-Y-Nd. In vitro biological test also suggested better hemocompatibility, pro-endothelialization, anti-hyperplasia and anti-inflammation functions of the PDA/HA-2- and PDA/HA-4-coated Mg-Zn-Y-Nd alloy. Nevertheless, the in vivo implantation of SD rats' celiac artery demonstrated that the PDA/HA-2 had preferable corrosion resistance and biocompatibility.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Materiales Biocompatibles Revestidos
/
Aleaciones
Límite:
Animals
/
Humans
Idioma:
En
Revista:
Mater Sci Eng C Mater Biol Appl
Año:
2020
Tipo del documento:
Article