Biofilm Eradication Concentration
Biofilm Eradication Concentration - Related Videos
06:16
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Cited by 4 •
2022
The protocol describes an easy-to-handle tool called Mistletoe Eradicator which combines mechanical and chemical approaches and is efficient in the control of mistletoe infestation on the host trees. The manuscript uses the European mistletoe (Viscum album subsp. album L.) as an example.
06:41
A Peg Plate Biofilm Assay for Screening Antibacterial Agents
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This video demonstrates an assay for screening antimicrobial compounds that efficiently eliminate biofilms using a peg-plate. The methodology monitors the biofilm's metabolic state after treatment with antimicrobial compounds, facilitating the determination of the minimum biofilm eradication concentration.
11:47
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0 Views •
Cited by 1 •
2022
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09:03
Growth of Mycobacterium tuberculosis Biofilms
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Cited by 79 •
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10:17
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Cited by 28 •
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FAQs
The extracellular matrix can protect organisms within a mature biofilm by limiting antimicrobial penetration, while biofilm-associated cellular tolerance can reduce the drug’s effect even when exposure reaches the community. These features help explain why concentrations that affect free-floating cells may not clear an established biofilm, making BEC measurements important for evaluating treatment effectiveness.
Planktonic susceptibility tests describe antimicrobial activity against free-floating cells, whereas BEC testing examines survival in an established attached community. Comparing both results can reveal whether a treatment performs differently against biofilm-associated organisms. This distinction is useful when infection persistence may involve organisms attached to tissues or medical devices rather than cells circulating freely.
A high BEC indicates that eliminating the established biofilm requires greater antimicrobial exposure than might be suggested by testing free-floating cells alone. The result can reflect protection from the extracellular matrix, restricted drug penetration, or cellular tolerance within the biofilm. In infection research, this finding emphasizes the difficulty of clearing persistent attached organisms.
The assay begins with an established, mature biofilm and exposes separate biofilm samples to increasing antimicrobial concentrations. After treatment, investigators assess organism survival across the concentration range. The resulting pattern identifies the exposure associated with biofilm elimination and provides a treatment-focused measurement that differs from testing antimicrobial activity against free-floating cells.
Medical devices can provide surfaces where organisms remain attached and develop biofilms. BEC measurements test whether an antimicrobial can eliminate those established communities, rather than only inhibit free-floating organisms. This information helps infection researchers compare therapies in a context relevant to device-associated persistence and determine whether apparent planktonic activity translates into biofilm clearance.
Chronic wounds and other persistent infections may contain organisms protected within attached biofilms, creating a treatment challenge that planktonic testing alone may not capture. BEC analysis adds evidence about the concentration needed for clearance in that setting. Within immunology and infection research, it supports evaluation of therapies aimed at removing biofilms from infected tissues.