Correction: Layered double hydroxide/hydroxyapatite‑ciprofloxacin composite coating on AZ31 magnesium alloy: Corrosion resistance, antibacterial, osteogenesis

Magnesium alloys have received more attention as orthopedic repair materials, while their rapid degradation and susceptibility to bacterial infections limit their clinical medical applications. In this study, the layered double hydroxide/hydroxyapatite (LDH/HAp) composite coating was first prepared by hydrothermal method, and then ciprofloxacin (CIP) was loaded on LDH/HAp by the traditional immersion method. Composite coatings were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), and scanning electron microscopy (SEM) techniques. The LDH/HAp-CIP coating has a more excellent inhibitory effect on the activity of Staphylococcus aureus ( S. aureus ) and Escherichia coli ( E. coli ). At the same time, composite coatings showed higher cell compatibility to MC3T3-E1 cells. Composite coatings promoted the expression of alkaline phosphatase (ALP) and upregulated the expression level of related osteogenic genes. Overall, these results are conducive to the advancement of the clinical application of magnesium alloys as orthopedic restorative materials. Graphical abstract