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Related Concept Videos

Biofilms01:29

Biofilms

Biofilms are complex communities of microorganisms encased in a self-produced extracellular polysaccharide matrix attached to surfaces. These microbial consortia can include single or multiple species, providing enhanced survival benefits by forming organized, multilayered structures.The formation of biofilms occurs through four key stages: attachment, colonization, development, and dispersal.During attachment, free-swimming planktonic cells adhere to a surface, often facilitated by...
Colonisation of Pathogens01:25

Colonisation of Pathogens

Pathogen colonization of host tissues is a critical step in the development of infectious diseases. Various pathogenic microorganisms, including bacteria, fungi, viruses, and protozoa, have evolved complex strategies to attach to, invade, and persist within host environments. These mechanisms enable pathogens to establish infections, evade immune responses, and resist antimicrobial treatments.Attachment to Host CellsIn bacteria, colonization typically begins with adherence to host epithelial...

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Related Experiment Video

Updated: Jul 4, 2026

Microtiter Dish Biofilm Formation Assay
03:57

Microtiter Dish Biofilm Formation Assay

Published on: January 30, 2011

Processes governing primary biofilm formation.

J D Bryers1, W G Characklis

  • 1Swiss Federal Institute for Water Resources and Water Pollution Control (EAWAG), Dübendorf CH-8600, Switzerland.

Biotechnology and Bioengineering
|November 1, 1982
PubMed
Summary
This summary is machine-generated.

Biofilm accumulation in tubes involves transport, growth, and detachment. Detachment increases with biofilm thickness and flow, while net production stabilizes regardless of flow or biomass concentration.

More Related Videos

Methods for Characterizing the Co-development of Biofilm and Habitat Heterogeneity
09:21

Methods for Characterizing the Co-development of Biofilm and Habitat Heterogeneity

Published on: March 11, 2015

Related Experiment Videos

Last Updated: Jul 4, 2026

Microtiter Dish Biofilm Formation Assay
03:57

Microtiter Dish Biofilm Formation Assay

Published on: January 30, 2011

Methods for Characterizing the Co-development of Biofilm and Habitat Heterogeneity
09:21

Methods for Characterizing the Co-development of Biofilm and Habitat Heterogeneity

Published on: March 11, 2015

Area of Science:

  • Microbiology
  • Fluid Dynamics
  • Biochemical Engineering

Background:

  • Biofilm accumulation on surfaces is a complex process influenced by fluid dynamics and microbial activity.
  • Understanding these dynamics is crucial for managing biofilm-related issues in industrial and medical settings.

Purpose of the Study:

  • To quantify the rates of biofilm formation processes under turbulent flow.
  • To investigate the influence of Reynolds number and suspended biomass concentration on these rates.

Main Methods:

  • Experiments were conducted in a tubular reactor to measure biofilm accumulation rates.
  • Key processes studied include transport, adhesion, metabolic conversion, and detachment.
  • Variations in Reynolds number and suspended biomass concentration were applied.

Main Results:

  • Transport and adhesion (deposition) are significant only in the initial stages of biofilm formation.
  • Net biofilm production rates stabilized across different conditions and were unaffected by Reynolds number or biomass concentration.
  • Biofilm detachment rates increased with both biofilm accumulation and Reynolds number.

Conclusions:

  • Biofilm accumulation is primarily governed by detachment in later stages, especially under higher flow conditions.
  • Flow dynamics (Reynolds number) and suspended biomass concentration have limited impact on net biofilm production rates once established.
  • These findings aid in predicting and controlling biofilm development in engineered systems.