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Methods for Characterizing the Co-development of Biofilm and Habitat Heterogeneity
Published on: March 11, 2015
Mini-review: convection around biofilms
1Center for Biofilm Engineering and Department of Chemical and Biological Engineering, Montana State University-Bozeman, Bozeman, Montana 59717-3980, USA. phil_s@biofilm.montana.edu
Biofouling
|February 23, 2012
Summary
Fluid flow around biofilms impacts solute transport and biofilm structure. Understanding these forces is key to controlling biofilm behavior and preventing detachment.
Area of Science:
- Bioengineering
- Environmental Engineering
- Microbiology
Background:
- Fluid flow significantly influences biofilm dynamics, affecting solute transport and physical integrity.
- The fluid layer near biofilms acts as a barrier, impacting nutrient and oxygen diffusion.
- External mass transfer resistance is critical, influencing biofilm growth patterns and metabolic processes.
Purpose of the Study:
- To review engineering approaches for quantifying fluid-biofilm interactions.
- To understand how fluid forces affect biofilm deformation and detachment.
- To explore the consequences of hydrodynamics on biofilm structure and function.
Main Methods:
- Review of engineering quantification methods.
- Analysis of fluid dynamics using particle velocimetry and magnetic resonance imaging.
- Examination of forces applied by fluid flow on biofilms.
Main Results:
- Water flows around, not through, biofilm cell clusters.
- Fluid forces induce viscoelastic deformation, rolling, streamer formation, and detachment.
- Complex hydrodynamics generate shear forces and additional force components on biofilms.
Conclusions:
- Fluid-biofilm interactions are complex, involving significant mass transfer resistance and mechanical forces.
- Engineering approaches are crucial for understanding and manipulating these interactions.
- Controlling fluid dynamics is essential for managing biofilm development and preventing detachment.
