Biofilm Development
Biofilm Development - Related Videos
07:16
Development of a Polymicrobial Colony Biofilm Model to Test Antimicrobials in Cystic Fibrosis
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Cited by 3 •
2024
This methodology allows for the establishment of a polymicrobial biofilm model in cystic fibrosis for antimicrobial sensitivity testing in research and clinical laboratories. This model provides accurate and reliable results over a range of outputs.
09:21
Methods for Characterizing the Co-development of Biofilm and Habitat Heterogeneity
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Cited by 5 •
2015
Biofilms have complex interactions with their surrounding environment. To comprehensively investigate biofilm-environment interactions, we present here a series of methods to create heterogeneous chemical environment for biofilm development, to quantify local flow velocity, and to analyze mass transport in and around biofilm colonies.
11:17
A Semi-quantitative Approach to Assess Biofilm Formation Using Wrinkled Colony Development
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Cited by 32 •
2012
We provide a simple, semi-quantitative method to investigate biofilm formation in vitro. This method takes advantage of the Zeiss stemi 2000-C Dissecting Microscope (with camera attachment) to monitor both the timing and pattern of biofilm formation, as assessed by the development of wrinkled colonies.
03:03
Developing a Bacterial Monolayer Biofilm Using an Electrochemical Reactor
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2026
Source: Tokunou, Y. et. al., Electrochemical Detection of Deuterium Kinetic Isotope Effect on Extracellular Electron Transport in Shewanella oneidensis MR-1. J. Vis. Exp. (2018)This video demonstrates the assembly and operation of an electrochemical reactor model designed to simulate biofilm formation on electrode surfaces. Controlled electrochemical stimulation promotes microbial adhesion, leading to the gradual development of a bacterial monolayer biofilm.
05:03
Visualizing the Effects of Sputum on Biofilm Development Using a Chambered Coverglass Model
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Cited by 5 •
2016
This protocol describes the visualization of biofilm development following exposure to host-factors using a slide chamber model. This model allows for direct visualization of biofilm development as well as analysis of biofilm parameters using computer software programs.
FAQs
The transition marks a change from temporary surface association to stable adhesion. After irreversible attachment, cells can grow in place and produce extracellular polymeric substance, or EPS, which helps organize the community and supports its persistence. Distinguishing these stages is important because interventions that prevent stable adhesion address an earlier point in development than strategies aimed at mature biofilms.
EPS provides the surrounding material in which attached microorganisms become organized. Its production accompanies cell growth and maturation, creating a structured community rather than a collection of independently attached cells. Because the matrix is also described as protective, changes in EPS production can affect community persistence and are relevant to both beneficial engineered systems and efforts to limit harmful colonization.
Chemical signaling and local environmental conditions help coordinate transitions between attachment, growth, matrix production, maturation, and dispersal. These factors therefore influence not only whether a community persists, but also when it changes state. In bioengineering, accounting for such controls can help researchers improve desired microbial communities while reducing unwanted fouling or colonization.
A time-resolved analysis should distinguish reversible attachment, irreversible adhesion, cell growth, EPS matrix production, maturation, and eventual dispersal. Tracking these stages helps connect visible community structure with underlying behavior and prevents early attachment from being interpreted as a mature biofilm. The sequence is useful for comparing how environmental conditions or engineered surfaces influence development.
Understanding the sequence and organization of development supports the design of engineered microbial systems and wastewater treatment processes. Researchers can use this knowledge to encourage stable, beneficial microbial communities and examine how structure or behavior contributes to system performance. The same principles also help identify conditions that promote unwanted fouling, allowing engineered processes to balance retention with control.
Biofilm structure and behavior are relevant to biomaterial design, fouling control, and device-associated infection research. Structural analysis can reveal how microorganisms organize within an EPS-supported community, while behavioral analysis can consider growth, maturation, signaling, and dispersal. Together, these perspectives help researchers design materials or systems that support useful colonization or limit harmful surface-associated communities.