Journal
APPLIED SURFACE SCIENCE
Volume 396, Issue -, Pages 249-258Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2016.10.092
Keywords
Magnesium alloy; ZnO nanoparticles (NPs); Polycaprolactone (PCL); Electrospinning; Corrosion; Biocompatibility
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Funding
- Basic Science Research Program through the National Research Foundation of Korea (NRF) by Ministry of Education [NRF 2015R1C1A1A02036404]
- RonBuk TechnoPark academic-industrial core technology development and commercialization support program
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In the efforts to improve corrosion resistance and biocompatibility of magnesium alloys, polycarprolactone (PCL) and zinc oxide nanoparticles (ZnO NPs) composite coatings were applied onto AZ31 Mg alloys via electrospinning technique in this study. The PCL/ZnO composite coatings on Mg alloys were characterized by using FE-SEM, EDX, XPS, and FT-IR. Moreover, coating adhesion test, electrochemical corrosion test, and biocompatibility test in vitro were performed to measure coating performance. Our results revealed that the increase in the content of ZnO NPs in the composite coatings not only improved the coating adhesion of composite coatings on Mg alloys, but also increased the corrosion resistance. Furthermore, the biocompatibility of MC3T3-E1 osteoblasts of the PCL/ZnO composite coated samples was superior to the biocompatibility of the bare samples. Such data suggest that applying PCL/ZnO composite coating to the magnesium alloys has suitable potential in biomedical applications. (C) 2016 Published by Elsevier B.V.
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