Sulphate reducing bacteria (SRB) biofilm development and its role in microbial corrosion of carbon steel
The development of biofilm by pure SRB culture on carbon steel, and its role on corrosion were investigated using microscopic, spectroscopic, electrochemical and surface characterization techniques. Tubercle biofilm and irregularly shaped pits were observed on steel surfaces in high-nutrient biotic...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2024-02-01
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| Series: | Frontiers in Materials |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmats.2024.1360869/full |
| _version_ | 1797302434934030336 |
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| author | Sachie Welikala Saad Al-Saadi Saad Al-Saadi Will P. Gates Christopher Panter R. K. Singh Raman R. K. Singh Raman |
| author_facet | Sachie Welikala Saad Al-Saadi Saad Al-Saadi Will P. Gates Christopher Panter R. K. Singh Raman R. K. Singh Raman |
| author_sort | Sachie Welikala |
| collection | DOAJ |
| description | The development of biofilm by pure SRB culture on carbon steel, and its role on corrosion were investigated using microscopic, spectroscopic, electrochemical and surface characterization techniques. Tubercle biofilm and irregularly shaped pits were observed on steel surfaces in high-nutrient biotic solution. Owing to development of a protective FeS film in 72 h immersion, corrosion resistance improved. In nutrient-deficient medium, a greater bacterial density attached to the metal surface as the consequence of starved bacteria seeking energy sources from metal. However, electrochemical non-homogeneity developed at the locations of their attachment, that gradually grew over the entire surface. |
| first_indexed | 2024-03-07T23:37:49Z |
| format | Article |
| id | doaj.art-c3a60361707d4348b7bf8c26f8a84863 |
| institution | Directory Open Access Journal |
| issn | 2296-8016 |
| language | English |
| last_indexed | 2024-03-07T23:37:49Z |
| publishDate | 2024-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Materials |
| spelling | doaj.art-c3a60361707d4348b7bf8c26f8a848632024-02-20T05:18:18ZengFrontiers Media S.A.Frontiers in Materials2296-80162024-02-011110.3389/fmats.2024.13608691360869Sulphate reducing bacteria (SRB) biofilm development and its role in microbial corrosion of carbon steelSachie Welikala0Saad Al-Saadi1Saad Al-Saadi2Will P. Gates3Christopher Panter4R. K. Singh Raman5R. K. Singh Raman6Department of Chemical and Biological Engineering, Monash University, Clayton, VIC, AustraliaDepartment of Chemical and Biological Engineering, Monash University, Clayton, VIC, AustraliaDepartment of Mechanical and Aerospace Engineering, Monash University, Clayton, VIC, AustraliaInstitute for Frontier Materials, Deakin University, Burwood, VIC, AustraliaCP Microbiology and Analytical Laboratories, Mulgrave, VIC, AustraliaDepartment of Chemical and Biological Engineering, Monash University, Clayton, VIC, AustraliaDepartment of Mechanical and Aerospace Engineering, Monash University, Clayton, VIC, AustraliaThe development of biofilm by pure SRB culture on carbon steel, and its role on corrosion were investigated using microscopic, spectroscopic, electrochemical and surface characterization techniques. Tubercle biofilm and irregularly shaped pits were observed on steel surfaces in high-nutrient biotic solution. Owing to development of a protective FeS film in 72 h immersion, corrosion resistance improved. In nutrient-deficient medium, a greater bacterial density attached to the metal surface as the consequence of starved bacteria seeking energy sources from metal. However, electrochemical non-homogeneity developed at the locations of their attachment, that gradually grew over the entire surface.https://www.frontiersin.org/articles/10.3389/fmats.2024.1360869/fullsulphate reducing bacteria (SRB)focused ion beam-scanning electron microscopy (FIB-SEM)environmental scanning electron microscopy (ESEM)microbial corrosionbiofilm |
| spellingShingle | Sachie Welikala Saad Al-Saadi Saad Al-Saadi Will P. Gates Christopher Panter R. K. Singh Raman R. K. Singh Raman Sulphate reducing bacteria (SRB) biofilm development and its role in microbial corrosion of carbon steel Frontiers in Materials sulphate reducing bacteria (SRB) focused ion beam-scanning electron microscopy (FIB-SEM) environmental scanning electron microscopy (ESEM) microbial corrosion biofilm |
| title | Sulphate reducing bacteria (SRB) biofilm development and its role in microbial corrosion of carbon steel |
| title_full | Sulphate reducing bacteria (SRB) biofilm development and its role in microbial corrosion of carbon steel |
| title_fullStr | Sulphate reducing bacteria (SRB) biofilm development and its role in microbial corrosion of carbon steel |
| title_full_unstemmed | Sulphate reducing bacteria (SRB) biofilm development and its role in microbial corrosion of carbon steel |
| title_short | Sulphate reducing bacteria (SRB) biofilm development and its role in microbial corrosion of carbon steel |
| title_sort | sulphate reducing bacteria srb biofilm development and its role in microbial corrosion of carbon steel |
| topic | sulphate reducing bacteria (SRB) focused ion beam-scanning electron microscopy (FIB-SEM) environmental scanning electron microscopy (ESEM) microbial corrosion biofilm |
| url | https://www.frontiersin.org/articles/10.3389/fmats.2024.1360869/full |
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