Extracellular polymeric bacterial coverages as minimal area surfaces.

Surfaces formed by extracellular polymeric substances enclosing individual and some small communities of Acidithiobacillus ferrooxidans on plates of hydrophobic silicon and hydrophilic mica are analyzed by means of atomic force microscopy imaging. Accurate nanoscale descriptions of such coverage surfaces are obtained. The good agreement with the predictions of a rather simple but realistic theoretical model allows us to conclude that they correspond, indeed, to minimal area (constant mean curvature) surfaces enclosing a given volume associated with the encased bacteria. This is, to the best of our knowledge, the first shape characterization of the coverage formed by these biomolecules, with potential applications to the study of biofilms.

• Publication year

  2005

• Venue

  Journal of Colloid and Interface Science

• Publication date

  2005-07-09

• Fields of study

  Biology, Medicine, Materials Science, Physics

• Identifiers
  DOI 10.1016/j.jcis.2006.09.060arXiv physics/0507069PMID 17045281
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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