WebBiofilm Growth under Elastic Confinement George T. Fortune ,1 Nuno M. Oliveira ,1,2 and Raymond E. Goldstein 1,* 1Department of Applied Mathematics and Theoretical … WebIn this case, a biofilm is treated as a saturated porous medium also having linear elastic properties. A numerical modeling approach is used to calculate the von Mises stress distribution within a porous medium under fluid-structure interaction (FSI) loading to determine the initial rupture of the biofilm structure.
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WebDec 5, 2024 · Biofilm Growth Under Elastic Confinement ... a biofilm growing laterally in the space between a solid surface and an overlying elastic sheet. A poroelastic … WebOct 15, 2001 · Biofilm formation is a process whereby microorganisms irreversibly attach to and grow on a surface and produce extracellular polymers that facilitate attachment and matrix formation, resulting in an alteration in the phenotype of the organisms with respect to growth rate and gene transcription. flowies github
Porous Elastic Model for Bacterial Biofilms: Application to the ...
WebMay 6, 2015 · Although in both biofilms an initial elastic response was clear, residual deformation was observed after the stress was removed (figures 1b,c, t = 120 s). Analysis of biofilm deformation under the highest flow condition is presented in figure 2. Strain over time is shown for the sloughing event observed in the lower viscosity biofilm and a ... WebAug 9, 2024 · Biofilm growth occurs at the biofilm-fluid interface by a stochastic rule that depends on the local nutrient concentration. We compare the growth, migration, and morphology of viscoelastic biofilms with a common relaxation time of 18 min over the range of elastic moduli 10-1000 Pa in different nearby nutrient source configurations. WebWe present dimensionless shallow layer scalings that reduce the system of equations describing the full system (2)-(6) in the main text to a pair of coupled differential equations for the height h ( r, t ) and vertically averaged biomass volume fraction (cid:104) φ (cid:105) ( r, t ) as a function of radial distance r and time t . The deformation ξ is expressed as a … flowies idleon