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Influence of a dual-species biofilm on the corrosion of mild steel

Lee, Anthea K. and Buehler, Martin G. and Newman, Dianne K. (2006) Influence of a dual-species biofilm on the corrosion of mild steel. Corrosion Science, 48 (1). pp. 165-178. ISSN 0010-938X. doi:10.1016/j.corsci.2004.11.013.

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The effect of a dual-species biofilm on the corrosion of carbon steel was examined using two bacterial species: the iron-reducer, Shewanella oneidensis (MR-1), and the sulfate-reducer, Desulfovibrio desulfuricans (G20). These experiments exploit the fact that the products of their metabolism (ferrous iron or sulfide) affect the corrosion rate of carbon steel in opposite ways. Electrochemical impedance spectroscopy (EIS) shows that over a short time period, co-cultures of MR-1 and G20 protect steel from corrosion. The fact that an iron-reducing bacterium can inhibit corrosion when a corrosion-enhancing bacterium is present warrants future study with respect to its potential applicability to the design of biological corrosion-control measures.

Item Type:Article
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Newman, Dianne K.0000-0003-1647-1918
Additional Information:© 2005 Elsevier Ltd. Received 7 September 2003; accepted 6 November 2004. Available online 8 March 2005. We thank Davin Malasarn for help with the environmental isolates, Susanne Douglas at the Jet Propulsion Laboratory for help with ESEM, Florian Mansfeld and Stan Hsu for their assistance with EIS, and members of the Newman lab for useful discussions. This material is based upon work supported by the National Science Foundation under a grant awarded in 2001 to AKL, and by grants from the Office of Naval Research and the Luce Foundation to DKN.
Funding AgencyGrant Number
Office of Naval Research (ONR)UNSPECIFIED
Luce FoundationUNSPECIFIED
Subject Keywords:carbon steel (A); EIS (B); microbiological corrosion (C)
Issue or Number:1
Record Number:CaltechAUTHORS:20130402-132103393
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Official Citation:Anthea K. Lee, Martin G. Buehler, Dianne K. Newman, Influence of a dual-species biofilm on the corrosion of mild steel, Corrosion Science, Volume 48, Issue 1, January 2006, Pages 165-178, ISSN 0010-938X, 10.1016/j.corsci.2004.11.013.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:37725
Deposited By: Tony Diaz
Deposited On:04 Apr 2013 23:48
Last Modified:09 Nov 2021 23:31

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