生物腐蚀的研究进展

生物腐蚀是指由于微生物存在于金属表面,而加速其腐蚀的过程,其具体的机制仍然在探讨中。有机体共存于其自然形成的生物膜中,在金属表面形成复杂的集合体,从而影响金属腐蚀。混合菌导致的腐蚀速率比单一菌种导致的腐蚀速率高得多。目前关于这方面的研究主要集中于金属表面的生物矿化过程以及在生物膜金属界面上生物膜胶结物中胞外酶对电化学反应的影响。

Research progress of biocorrosion

The biocorrosion refers to the accelerated deterioration of metals owing to the presence of biofilms on their surfaces. The detailed mechanisms of biocorrosion are still poorly understood. Recent investigations into biocorrosion have focused on the influence of biomineralization processes taking place on metallic surfaces and the impact of extracellular enzymes, active within the biofilm matrix, on electrochemical reactions at the biofilm-metal interface.