Biofilm Culture Media
Biofilm Culture Media - Related Videos
04:14
Establishing a Fungal-Bacterial Co-culture for Biofilm Formation
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2026
Source: Miquel Guennoc, C., et al. New Method for Qualitative Multi-scale Analysis of Bacterial Biofilms on Filamentous Fungal Colonies Using Confocal and Electron Microscopy. J. Vis. Exp. (2017)This video demonstrates the preparation of a fungal culture on treated cellophane membranes to support colony formation and radial growth. It then shows the cultivation and preparation of soil bacterial cells for interaction assays. Finally, it illustrates how bacterial cells adhere to the fungal colony...
09:03
Growth of Mycobacterium tuberculosis Biofilms
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Cited by 79 •
2012
Mycobacterium tuberculosis forms drug tolerant biofilms when cultured in certain conditions. Here we describe methods for culturing M. tuberculosis biofilms and determining the frequency of drug tolerant persisters. These protocols will be useful for further studies into the mechanisms of drug tolerance in M. tuberculosis.
11:21
Co-culture Models of Pseudomonas aeruginosa Biofilms Grown on Live Human Airway Cells
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Cited by 48 •
2010
This paper describes different methods of growing Pseudomonas aeruginosa biofilms on cultured human airway epithelial cells. These protocols can be adapted to study different aspects of biofilm formation, including visualization of the biofilm, staining of the biofilm, measuring the colony forming units (CFU) of the biofilm, and studying biofilm cytotoxicity.
09:35
Enrichment Cultures: Culturing Aerobic and Anaerobic Microbes on Selective and Differential Medias
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2023
Source: Christopher P. Corbo1, Jonathan F. Blaize1, Elizabeth Suter1 1 Department of Biological Sciences, Wagner College, 1 Campus Road, Staten Island NY, 10301 Prokaryotic cells are able to inhabit nearly every environment on this planet. As a kingdom, they possess a great metabolic diversity, allowing them to use a wide variety of molecules for energy generation (1). Therefore, when cultivating these organisms in the lab, all necessary and specific molecules required to make energy must be...
08:59
Isolation and Culture of Microglia from Rat Brains using Serum-Free Media
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2025
This video demonstrates a method for isolating and culturing microglia from rat brains. It entails separating microglia from other neuronal and non-neuronal cells using plates coated with a monoclonal antibody specific to microglia.
FAQs
Carbon sources shape microbial metabolism and can alter how cells allocate resources between growth, extracellular polymeric substance production, and aggregation. These changes affect the amount and organization of attached biomass, as well as the balance between surface-associated and planktonic cells. Comparing formulations with different carbon inputs can therefore reveal how nutrient conditions influence biofilm maturation and community behavior.
These conditions regulate the environment in which microbial cells grow and attach. pH and salts can influence metabolism, aggregation, and matrix production, while oxygen availability affects metabolic activity and the distribution of planktonic versus biofilm growth. Controlling these variables helps researchers distinguish biological responses from changes caused by inconsistent culture conditions and improves comparisons between experiments.
Extracellular polymeric substance production promotes the development of the matrix surrounding microbial cells. As matrix production and cell aggregation change, the community can progress from initial attachment toward a more mature biofilm structure. Media composition influences these processes by modifying metabolism and nutrient availability, making matrix-associated development an important indicator of how culture conditions shape the model.
Researchers should match the formulation to the biological process they want to examine, considering carbon sources, salts, pH, and oxygen availability. These variables can change biomass, viability, structure, matrix production, and planktonic growth. Keeping the selected conditions consistent across samples supports reproducible in vitro models and makes treatment responses or comparisons between microbial communities easier to interpret.
Media comparisons can be used to examine biofilm structure, total biomass, cell viability, and responses to environmental or therapeutic treatments. They can also show whether a condition favors attached growth, planktonic growth, or a particular stage of community development. Together, these outcomes provide complementary evidence about both the physical state of the biofilm and its biological performance.
These formulations support in vitro models for investigating microbial development, interactions within communities, antimicrobial tolerance, and host-associated colonization. They are especially useful when researchers need controlled conditions for comparing how environmental or therapeutic changes affect a biofilm. Adjusting the medium can also improve the relevance of the model to the biological setting being studied while preserving experimental comparability.