title: Dissipative-particle-dynamics model of biofilm growth.
abstract: A dissipative-particle-dynamics model for the quantitative simulation of biofilm growth controlled by substrate (nutrient) consumption, advective and diffusive substrate transport, and hydrodynamic interactions with fluid flow (including fragmentation and reattachment) is described. The model was used to simulate biomass growth, decay, and spreading. It predicts how the biofilm morphology depends on flow conditions, biofilm growth kinetics, the rheomechanical properties of the biofilm, and adhesion to solid surfaces. The morphology of the model biofilm depends strongly on its rigidity and the magnitude of the body force that drives the fluid over the biofilm.
authors.affiliation: Computational Mathematics Group, Fundamental and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, USA. zhijie.xu@pnl.gov
authors.forename: Zhijie
authors.initials: Z
authors.lastname: Xu
authors.forename: Paul
authors.initials: P
authors.lastname: Meakin
authors.forename: Alexandre
authors.initials: A
authors.lastname: Tartakovsky
authors.forename: Timothy D
authors.initials: TD
authors.lastname: Scheibe
mesh_terms: D018441:Biofilms / Q000254:growth & development*; D016923:Cell Death; D004058:Diffusion; D057446:Hydrodynamics; D008954:Models, Biological