title: Evaluation of biofilm performance as a protective barrier against biocorrosion using an enzyme electrode.
abstract: Sulfide is known to be an important factor in microbiologically influenced corrosion (MIC) of metals and concrete deterioration in wastewater treatment structures and sewer pipelines. A sulfide biosensor was used to determine the effectiveness of Escherichia coli DH5 alpha biofilm as a protective barrier against MIC. The biofilm was shown to be effective in protecting surfaces from sulfide and helping to reduce MIC using amperometric measurements. The results also indicated that the growth conditions of E. coli DH5 alpha may have an impact on the performance of the biofilm as a sulfide barrier. The simple method provided in this work enables the comparison of several microbial biofilms and selection of the ones with potential to prevent MIC in a relatively short time.
authors.affiliation: Department of Civil and Environmental Engineering, Carleton University, 1125 Colonel By Drive, Ottawa, ON, Canada K1S 5B6.
authors.forename: S
authors.initials: S
authors.lastname: Soleimani
authors.forename: B
authors.initials: B
authors.lastname: Ormeci
authors.forename: O B
authors.initials: OB
authors.lastname: Isgor
authors.forename: S
authors.initials: S
authors.lastname: Papavinasam
mesh_terms: D018441:Biofilms; D019149:Bioreactors; D003252:Construction Materials; D003343:Corrosion; D004563:Electrochemistry; D004566:Electrodes; D004798:Enzymes; D008670:Metals; D050862:Oxidoreductases Acting on Sulfur Group Donors / Q000378:metabolism*; D013997:Time Factors
chemical_list: D004798:Enzymes; D008670:Metals; D050862:Oxidoreductases Acting on Sulfur Group Donors; C080499:sulfide oxidase