Biofilms: strategies for metal corrosion inhibition employing microorganisms |
| |
Authors: | Rongjun Zuo |
| |
Institution: | (1) Center for Engineering in Medicine/Surgical Services, Massachusetts General Hospital, Harvard Medical School, and Shriners Hospital for Children, Boston, MA, USA |
| |
Abstract: | Corrosion causes dramatic economic loss. Currently widely used corrosion control strategies have disadvantages of being expensive,
subject to environmental restrictions, and sometimes inefficient. Studies show that microbial corrosion inhibition is actually
a common phenomenon. The present review summarizes recent progress in this novel strategy: corrosion control using beneficial
bacteria biofilms. The possible mechanisms may involve: (1) removal of corrosive agents (such as oxygen) by bacterial physiological
activities (e.g., aerobic respiration), (2) growth inhibition of corrosion-causing bacteria by antimicrobials generated within
biofilms e.g., sulfate-reducing bacteria (SRB) corrosion inhibition by gramicidin S-producing Bacillus brevis biofilm], (3) generation of protective layer by biofilms (e.g., Bacillus licheniformis biofilm produces on aluminum surface a sticky protective layer of γ-polyglutamate). Successful utilization of this novel
strategy relies on advances in study at the interface of corrosion engineering and biofilm biology. |
| |
Keywords: | Bacterial biofilm Corrosion control |
本文献已被 PubMed SpringerLink 等数据库收录! |
|