The microbiologically influenced corrosion (MIC) of copper via extracellular electron transfer (EET) caused by was investigated using two different methods. Copper corrosion in enriched seawater was accelerated by and was further promoted by riboflavin (RF), an electron mediator that can accelerate EET. Within minutes of 20 ppm RF injection, the copper corrosion started to increase. The copper weight loss for 100% carbon source reduction was 1.4 times that of 0% carbon source reduction. The RF injection data together with carbon starvation data indicate that utilized elemental copper as an electron source to cause EET-MIC.

中文翻译：

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硝酸盐还原钛酸单胞菌通过细胞外电子转移进行铜腐蚀的研究

使用两种不同的方法研究了由细胞外电子转移 (EET) 引起的微生物影响的铜腐蚀 (MIC)。核黄素 (RF) 是一种可以加速 EET 的电子介体，可加速并进一步促进富集海水中的铜腐蚀。注入 20 ppm 射频后几分钟内，铜腐蚀开始加剧。 100%碳源减少的铜重量损失是0%碳源减少的1.4倍。 RF注入数据与碳饥饿数据一起表明利用元素铜作为电子源引起EET-MIC。