Insight into the biodegradation behavior of pure molybdenum under simulated inflammatory condition

Abstract

The study explores the impact of simulated inflammation on the corrosion behavior of pure Mo, a potential biodegradable metal for biomedical applications for the first time. Under simulated inflammatory conditions, Mo exhibits altered electrochemical properties, such as increased open circuit potential, higher corrosion rates, and reduced impedance as H2O2 concentration rises. Immersion test confirm the higher corrosion rates with increases in H2O2 concentration. Interestingly, pure Mo exhibit uniform corrosion behavior under aggressive simulated inflammation which is beneficial to maintain biomedical devices’ mechanical integrity. Furthermore, the underlying biodegradation mechanism and the mechanism of inflammatory cell-released inflammation species induced corrosion were discussed.