Time-dependent Enhanced Corrosion of Ti6Al4V in the Presence of H₂O₂ and Albumin.

ABSTRACT: There is increasing concern regarding the biological consequences of metal release from implants. However, the mechanisms underpinning implant surface degradation, especially in the absence of wear, are often poorly understood. Here the synergistic effect of albumin and H₂O₂ on corrosion of Ti6Al4V in physiological saline is studied with electrochemical methods. It is found that albumin induces a time-dependent dissolution of Ti6Al4V in the presence of H₂O₂ in physiology saline. Potentiostatic polarisation measurements show that albumin supresses dissolution in the presence of H₂O₂ at short times (<24 h) but over longer time periods (120 h) it significantly accelerates corrosion, which is attributed to albumin-catalysed diss

SUBMITTER: Zhang Y 

PROVIDER: S-EPMC5816596 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature