Journal
PHYSICAL REVIEW E
Volume 85, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevE.85.056309
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Funding
- NSF [CBET-1150348-CAREER]
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [1445955, 1150348] Funding Source: National Science Foundation
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We propose that the rheological properties of background fluid play an important role in the interaction of microorganisms with the flow field. The viscoelastic-induced migration of microorganisms in a vortical flow leads to the emergence of a limit cycle. The shape and formation rate of patterns depend on motility, vorticity strength, and rheological properties of the background fluid. Given the inherent viscoelasticity of exopolysaccharides secreted by microorganisms, our results can suggest new mechanisms leading to the vital behavior of microorganisms such as bacterial aggregation and biofilm formation.
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