Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    Geobacter species enhances pit depth on 304L stainless steel in a medium lacking with electron donor

    Access Status
    Fulltext not available
    Authors
    Mehanna, M.
    Basseguy, R.
    Delia, M.
    Gubner, Rolf
    Sathirachinda, N.
    Bergel, A.
    Date
    2009
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Mehanna, M. and Basseguy, R. and Delia, M. and Gubner, R. and Sathirachinda, N. and Bergel, A. 2009. Geobacter species enhances pit depth on 304L stainless steel in a medium lacking with electron donor. Electrochemistry Communications. 11 (7): pp. 1476-1481.
    Source Title
    Electrochemistry Communications
    ISSN
    13882481
    URI
    http://hdl.handle.net/20.500.11937/8883
    Collection
    • Curtin Research Publications
    Abstract

    Geobacter sulfurreducens bacteria increased the open circuit potential of 304L stainless steel by around 320 mV in only a few hours after inoculation. This represents a significant increase in the corrosion risk. In contrast, the oxidation of acetate, which is catalysed by well-established biofilms, shifted the pitting potential towards positive values. In acetate-lacking media, pitting occurred with and without bacteria in the same range of potential values, but the presence of bacteria drastically increased the size of pits. AFM showed pits more than 10 times broader and deeper due to the presence of bacteria.In the absence of acetate, the masking effect due to acetate oxidation disappeared and the full corrosive effect of the biofilm was revealed.This also Fully explains why pitting was predominantly observed close to surface areas where bacterial settlement was the densest.

    Related items

    Showing items related by title, author, creator and subject.

    • Total growth and root-cluster production by legumes and proteas depends on rhizobacterial strain, host species and nitrogen level.
      Lamont, Byron; Pérez-Fernández, M. (2016)
      BACKGROUND: Root clusters are bunches of hairy rootlets produced by >1800 species in nine families. The possible involvement of micro-organisms in root-cluster formation has produced conflicting results over the last 40 ...
    • Comparitive evaluation of Jatropha Curcas leaves extract for antibacterial, anti-avian influenza a virus (H5N1) properties and GC-MS profile
      El-Baz, F.; Bagato, O.; Aly, H.; Saad, S.; Ali, Mohammed; Mohamed, A. (2015)
      The potent antibacterial and antiviral activity of petroleum ether, ethyl acetate, successive and crude methanolic extracts of J. curcas leaves was evaluated. The antibacterial activity of J. curcas extracts was studied ...
    • Stable isotope labeling confirms mixotrophic nature of streamer biofilm communities at alkaline hot springs
      Schubotz, F.; Hays, L.; Meyer-Dombard, D.; Gillespie, A.; Shock, E.; Summons, Roger (2015)
      © 2015 Schubotz, Hays, Meyer-Dombard, Gillespie, Shock and Summons. Streamer biofilm communities (SBC) are often observed within chemosynthetic zones of Yellowstone hot spring outflow channels, where temperatures exceed ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.