Visualizing the Effects of Sputum on Biofilm Development Using a Chambered Coverglass Model

Trevor Beaudoin; Sarah Kennedy; Yvonne Yau; Valerie Waters

doi:10.3791/54819

Visualizing the Effects of Sputum on Biofilm Development Using a Chambered Coverglass Model

JoVE Journal
Immunology and Infection

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JoVE Journal Immunology and Infection

Visualizing the Effects of Sputum on Biofilm Development Using a Chambered Coverglass Model

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05:03 min

December 14, 2016

DOI: 10.3791/54819-v

Trevor Beaudoin¹, Sarah Kennedy², Yvonne Yau³, Valerie Waters⁴

¹Physiology and Experimental Medicine,Hospital for Sick Children, ²Department of Clinical Microbiology,Royal College of Surgeons in Ireland, ³Department of Laboratory Medicine and Pathobiology,University of Toronto, ⁴Department of Pediatrics,University of Toronto

Overview

This protocol describes the visualization and quantification of biofilm development in response to sputum and antibiotics using a slide chamber model. This model facilitates direct observation of biofilm changes and allows for detailed analysis using computer software.

Key Study Components

Area of Science

Microbiology
Biofilm research
Antibiotic efficacy

Background

Biofilms are complex communities of microorganisms.
Understanding biofilm response to antibiotics is crucial for treatment strategies.
Sputum can influence the effectiveness of antibiotics against biofilms.
This study aims to visualize these interactions effectively.

Purpose of Study

To visualize changes in biofilms due to sputum and antibiotic exposure.
To quantify the impact of host factors on biofilm development.
To enhance understanding of antibiotic efficacy against biofilms.

Methods Used

Collection of sputum samples.
Dilution of sputum with phosphate-buffered saline (PBS).
Mixing of samples for uniformity.
Visualization of biofilm development using a slide chamber model.

Main Results

Direct visualization of biofilm changes in response to antibiotics.
Quantitative analysis of biofilm parameters.
Insights into the interaction between sputum and biofilm response.
Demonstration of the efficacy of different antibiotics.

Conclusions

The slide chamber model is effective for studying biofilm dynamics.
Host factors like sputum significantly affect biofilm behavior.
This methodology can inform future antibiotic treatment strategies.

Frequently Asked Questions

What is the purpose of using a slide chamber model?

The slide chamber model allows for direct visualization and analysis of biofilm development in response to various factors.

How does sputum affect biofilm development?

Sputum can influence the efficacy of antibiotics against biofilms, impacting their growth and resistance.

What are the main advantages of this methodology?

It enables real-time observation of biofilm changes and quantitative analysis of biofilm parameters.

Can this method be used for other types of biofilms?

Yes, the methodology can be adapted to study various biofilm types and their responses to different treatments.

What software can be used for analyzing biofilm parameters?

Various computer software programs are available for analyzing biofilm characteristics, depending on the specific parameters of interest.

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.

The overall goal of this procedure is to visualize and quantify changes to biofilms in response to sputum and antibiotics. This method can be used by researchers to understand key questions, such as how the efficacy of various antibiotics against bacterial biofilms can be impacted by the presence of sputum. The main advantage of this methodology is it allows individuals to see changes occurring in biofilms in response to different factors.

To begin the experiment, record the volume of the previously obtained sputum sample. Add phosphate-buffered saline, or PBS, add two times the volume of the sample. Next, use a transfer pipette to thoroughly mix the sample.

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