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A simulation model of biofilms with autonomous cells: I. Analysis of a two-dimensional version

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  • Tatek, Yergou B.
  • Slater, Gary W.

Abstract

We introduce a single-cell based simulation model of biofilm growth. Each microbial cell is modelled as an autonomous agent whose behavior is controlled by thermodynamic parameters, mechanical properties, physiological rules and environmental conditions. In the two-dimensional version presented here, a cell is represented by a closed chain of self-avoiding beads linked together using the bond fluctuation algorithm. The cell is thus controlled both by the rigidity of its membrane and a pressure difference. The model is complemented by key features such as the explicit presence of nutrient diffusion and flow, the processes of cell-division and cell-death, and the attractive interactions between the cell and the surface on which the colony grows. Tuning the parameters of the model can lead to the growth and maturation of various types of biofilms. In this first article, we describe the main properties of a two-dimensional version of the model, and we discuss the extension to three dimensions.

Suggested Citation

  • Tatek, Yergou B. & Slater, Gary W., 2006. "A simulation model of biofilms with autonomous cells: I. Analysis of a two-dimensional version," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 362(2), pages 382-402.
    • Handle: RePEc:eee:phsmap:v:362:y:2006:i:2:p:382-402
    DOI: 10.1016/j.physa.2005.08.011
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    References listed on IDEAS

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    1. Matsushita, M & Wakita, J & Itoh, H & Watanabe, K & Arai, T & Matsuyama, T & Sakaguchi, H & Mimura, M, 1999. "Formation of colony patterns by a bacterial cell population," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 274(1), pages 190-199.
    2. Matsushita, Mitsugu & Fujikawa, Hiroshi, 1990. "Diffusion-limited growth in bacterial colony formation," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 168(1), pages 498-506.
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    Cited by:

    1. Blessing O Emerenini & Burkhard A Hense & Christina Kuttler & Hermann J Eberl, 2015. "A Mathematical Model of Quorum Sensing Induced Biofilm Detachment," PLOS ONE, Public Library of Science, vol. 10(7), pages 1-25, July.

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