Print Email Facebook Twitter Acceleration of corrosion of 304 stainless steel by outward extracellular electron transfer of Pseudomonas aeruginosa biofilm Title Acceleration of corrosion of 304 stainless steel by outward extracellular electron transfer of Pseudomonas aeruginosa biofilm Author Huang, Luyao (University of Science and Technology Beijing; Global Energy Interconnection Research Institute Co., Ltd.) Chang, Weiwei (University of Science and Technology Beijing) Zhang, Dawei (University of Science and Technology Beijing) Huang, Ye (Chinese Academy of Sciences) Li, Z. (TU Delft Team Arjan Mol) Lou, Yuntian (University of Science and Technology Beijing) Qian, Hongchang (University of Science and Technology Beijing) Jiang, Chengying (Chinese Academy of Sciences) Li, Xiaogang (University of Science and Technology Beijing) Mol, J.M.C. (TU Delft Team Arjan Mol) Date 2022 Abstract The influence of outward extracellular electron transfer (EET) of Pseudomonas aeruginosa in accelerating corrosion of 304 stainless steel was investigated. With less NO3− available as electron acceptor, P. aeruginosa biofilm accelerated the pitting corrosion. The ICP-MS and XPS results indicated that P. aeruginosa promoted the bioreductive dissolution of iron oxides in the passive film of stainless steel. Using in situ scanning electrochemical microscopy, we established a relationship between this accelerated deterioration of the passive film and the EET process mediated by the conversion of the redox states of pyocyanin secreted by P. aeruginosa. Subject Extracellular electron transferMicrobiological corrosionPseudomonas aeruginosaStainless steel To reference this document use: http://resolver.tudelft.nl/uuid:ce3725d3-0cb1-4bda-b789-b4683b5aed28 DOI https://doi.org/10.1016/j.corsci.2022.110159 Embargo date 2022-08-13 ISSN 0010-938X Source Corrosion Science: the journal on environmental degradation of materials and its control, 199 Bibliographical note Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2022 Luyao Huang, Weiwei Chang, Dawei Zhang, Ye Huang, Z. Li, Yuntian Lou, Hongchang Qian, Chengying Jiang, Xiaogang Li, J.M.C. Mol Files PDF 1_s2.0_S0010938X22000774_main.pdf 7.51 MB Close viewer /islandora/object/uuid:ce3725d3-0cb1-4bda-b789-b4683b5aed28/datastream/OBJ/view