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Related Concept Videos

Biofilms01:29

Biofilms

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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...
53

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Related Experiment Video

Updated: Jul 17, 2025

Author Spotlight: A Comprehensive Protocol for Acinetobacter Biofilm Quantification, Assessment, and Visualization
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Quantification, Viability Assessment, and Visualization Strategies for Acinetobacter Biofilms.

Joo-Sung Kim1, Jihoon Lim2

  • 1Korea Food Research Institute; Department of Food Biotechnology, Korea University of Science and Technology; jskim@kfri.re.kr.

Journal of Visualized Experiments : Jove
|September 7, 2023
PubMed
Summary

Quantifying Acinetobacter biofilms on surfaces is crucial for understanding hospital-acquired infections. New methods allow for precise measurement of biofilm volume and cell numbers, aiding infection control strategies.

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Area of Science:

  • Microbiology
  • Infectious Diseases
  • Biotechnology

Background:

  • Acinetobacter species are significant causes of nosocomial infections.
  • Biofilm formation enhances Acinetobacter survival on hospital surfaces, complicating infection control.
  • Accurate quantification and visualization of biofilms are essential for assessing infection potential.

Purpose of the Study:

  • To detail methods for quantifying Acinetobacter biofilm volume and cell numbers.
  • To describe techniques for visualizing Acinetobacter biofilms.
  • To provide tools for assessing Acinetobacter's role in hospital-acquired infections.

Main Methods:

  • Biofilm volume quantified using crystal violet staining and microplate reader.
  • Cell numbers determined by scraping biofilms, culturing on agar, and enumerating colonies.
  • Biofilm visualization achieved with SYTO9 and propidium iodide dyes, and confocal laser scanning microscopy.

Main Results:

  • Established protocols for accurate biofilm volume measurement.
  • Developed a viable count method for enumerating cells within biofilms, applicable to mixed-species scenarios.
  • Demonstrated effective visualization of biofilms using fluorescent staining and microscopy.

Conclusions:

  • The described methods provide robust tools for biofilm quantification and visualization.
  • These techniques are vital for evaluating Acinetobacter strains and informing infection control in healthcare settings.
  • Accurate assessment of Acinetobacter biofilms aids in managing nosocomial infections.