Application of atomic force microscopy in the study of microbiologically influenced corrosion

Lichong Xu, Kwong Yu Chan, Herbert H.P. Fang

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

This paper demonstrates the use of the atomic force microscope in high-resolution topographical imaging of bacteria, biofilm, and corroded steel surfaces, and in the quantification of localized corrosion. The nanometric physicochemical and mechanical properties of a single cell and bacterial biofilm surface are characterized by force mapping. The corrosion results in two different sulfate-reducing bacteria cultures showed that the patterns of pitting and the degree of corrosion of mild steel were related to the bacterial isolates. Results from measurement of the tip-biofilm and the tip-cell adhesion forces indicated that the extracellular polymeric substances were mainly distributed in the cell-substratum periphery or the cell-cell interface in the biofilm.

Original languageEnglish (US)
Pages (from-to)195-203
Number of pages9
JournalMaterials Characterization
Volume48
Issue number2-3
DOIs
StatePublished - Apr 1 2002

Fingerprint

Biofilms
biofilms
Atomic force microscopy
corrosion
atomic force microscopy
Corrosion
cells
Bacteria
bacteria
steels
Steel
Cell adhesion
Pitting
pitting
Sulfates
Carbon steel
Microscopes
sulfates
Imaging techniques
adhesion

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

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Application of atomic force microscopy in the study of microbiologically influenced corrosion. / Xu, Lichong; Chan, Kwong Yu; Fang, Herbert H.P.

In: Materials Characterization, Vol. 48, No. 2-3, 01.04.2002, p. 195-203.

Research output: Contribution to journalArticle

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