RT Journal Article
T1 Development of hybrid hierarchical coatings on Mg3Zn0.4Ca alloy for orthopaedic implants
A1 Moreno Turiegano, Lara
A1 Mohedano Sánchez, Marta
A1 Arrabal Durán, Raúl
A1 Roríguez-Hernández, Juan
A1 Matykina, Endzhe
AB A hybrid hierarchical coating (HHC) biodegradable system, consisting of a ceramic (PEO) and a biodegradable microporous polymeric (PLA or PCL) layers, was developed on Mg3Zn0.4Ca alloy and evaluated under quasi-in vivo conditions. The polymer top-coat was produced using the Breath Figures approach by dip-coating the PEO treated ceramic surface onto a PLA/PCL polymer solution and withdraw under high relative humidity. According to our findings, when the polymer coating is applied directly onto the PEO layer using high humidity a negligible corrosion protection was observed. However, this issue was overcome by first applying a thin sealing polymer layer before the microporous polymer layer prepared by dip-coating in the absence of moisture. The HHC system improves the corrosion resistance by 10–12 times compared to the stand-alone PEO coating and, due to its inherent porosity, should be amenable for further functionalization with pharmaceutical agents.
PB Elsevier
SN 2238-7854
YR 2023
FD 2023-06-01
LK https://hdl.handle.net/20.500.14352/108285
UL https://hdl.handle.net/20.500.14352/108285
LA eng
NO 1. Moreno, L.; Mohedano, M.; Arrabal, R.; Rodríguez-Hernández, J.; Matykina, E. Development of hybrid hierarchical coatings on Mg3Zn0.4Ca alloy for orthopaedic implants. Journal of Materials Research and Technology 2023, 24, 5823–5838 DOI:10.1016/j.jmrt.2023.04.185
DS Docta Complutense
RD 12 abr 2025