Swertia chirata Extract Synthesized Iron Oxide Nanoparticles as
Corrosion Inhibitor for SS-316L in Hank’s Solution
Metallic implants are the artificial biomedical devices used to replace, repair or improve the functioning of damaged body organ or tissue. Corrosion of metallic component in the human body leads to the failure or improper functioning of the implant. This study focuses on the application of Swertia chirata extract synthesized iron oxide nanoparticles as corrosion inhibitor for stainless steel (SS) 316L in Hank’s solution. Gravimetric method and electrochemical studied were used to analyze the corrosion inhibition property. SEM and AFM analyses confirmed the corrosion preventive effect of iron oxide nanoparticles on SS-316L surface. Further concentration dependent increase in inhibition efficiency was observed with maximum 80.3% corrosion inhibition at 100 ppm nanoparticles concentration from gravimetric analysis, which is well correlated with the electrochemical measurements. Therefore, iron oxide nanoparticles can be utilized as potent anticorrosive agent, which can protect the metal surface from further deterioration in harsh body environments.