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This video was recorded at 4th European Conference on Complex Systems. We propose a new individual-based model of mobile bacteria producing a biofilm. The model is based on the assumption that bacteria have a brownian motion and produce a polymeric substance that reduce their mobility by increasing local viscosity. We define the biofilm as the polymeric substance together with the bacteria it contains. Our simulation results show that bacteria mobility increases the heterogeneity and the complexity of the biofilm (that we evaluate with an entropy measure). The obtained biofilm patterns show good qualitative agreement with experimental observation of biofilm micrographs.

Disciplines:

• Science and Technology  / Biology  / Microbiology