Lien vers Pubmed [PMID] – 19905077
Phys Rev E Stat Nonlin Soft Matter Phys 2009 Sep;80(3 Pt 1):031122
The Brownian dynamics of a single microorganism coupled by chemotaxis to a diffusing concentration field that is secreted by the microorganism itself is studied by computer simulations in spatial dimensions d=1,2,3 . Both cases of a chemoattractant and a chemorepellent are discussed. For a chemoattractant, we find a transient dynamical arrest until the microorganism diffuses for long times. For a chemorepellent, there is a transient ballistic motion in all dimensions and a long-time diffusion. These results are interpreted with the help of a theoretical analysis.
http://www.ncbi.nlm.nih.gov/pubmed/19905077