Electron mediators accelerate the microbiologically influenced corrosion of 304 stainless steel by the Desulfovibrio vulgaris biofilm

Effect of surface passivation on corrosion resistance and antibacterial properties of Cu-bearing 316L stainless steel

“…For example, type 316L austenitic SS is widely used as implant material because of its better balance of mechanical strength, corrosion resistance and biocompatibility [10,11]. However, SS is susceptible to the microbiologically influenced corrosion (MIC) [12][13][14], which can lead to an accelerated corrosion process in the human body, leading to further infection in the health of infected host [15].…”

Mixed community biofilms and microbially influenced corrosion

“…MIC can be enhanced by the presence of microbially produced mediators, such as flavins, which enhance electron uptake from the metal surface 28 . Thus, removal of these mediators might help in mitigating MIC.…”

New method for characterizing electron mediators in microbial systems using a thin-layer twin-working electrode cell

“…This has been described in research work on microbial fuel cells, bioelectrochemical systems (Smith et al, 2015), biosensors (Chaubey and Malhotra, 2002) and microbially induced corrosion (Zhang et al 2015). The described Twin-WE system allows the analysis of electrochemically active species in very small volumes.…”

“…In fact, the role of mediators in EET has been well-known in microbial fuel cell (MFC) and microbially induced corrosion (MIC) research where the mediators were often shown to enhance current production (Lin et al, 2014) and accelerate corrosion rate Zhang et al, 2015), respectively. Along with flavins, some other compounds such as anthraquinone-2, 6-disulfonic acid (AQDS) (Sun et al, 2013), cysteine (Doong and Schink, 2002) and quinone (Freguia et al, 2009) have also proved their electron transfer capability.…”