Functionalizing Diatomite-Based Micro-Arc Coatings for Orthopedic Implants: Influence of TiO2 Addition

The method of micro-arc oxidation has been utilized to synthesize a protective biocompatible coating for bioresorbable orthopedic Mg implant. This paper presents the results comprehensive research coatings based on diatomite—a biogenic material consisting shells diatom microalgae. main focus this study was functionalization diatomite-based by incorporating particles titania (TiO2) into them. Various properties resulting were examined and evaluated. XRD analysis revealed formation new magnesium orthosilicate phase—forsterite (Mg2SiO4). It established that corrosion current density decreased 1–2 orders magnitude after inclusion TiO2 particles, depending process voltage. adhesion strength increased following particle incorporation. processes dissolution both coated uncoated samples in sodium chloride solution studied. vitro cell viability assessed, which showed significantly reduced cytotoxicity samples.