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Related Concept Videos

Antimicrobial Effectiveness01:28

Antimicrobial Effectiveness

772
The effectiveness of antimicrobial agents depends on various factors influencing their ability to eliminate microbial populations. Larger microbial populations require more time for complete eradication, emphasizing the importance of population size analysis when evaluating antimicrobial efficacy.Microbial resistance to antimicrobial agents varies significantly. Highly resilient microorganisms include endospores, gram-negative bacteria, and non-enveloped viruses, while prions are exceptionally...
772

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Paper-Based Semi-quantitative Antimicrobial Susceptibility Testing.

Ruisheng Wang1, David Erickson2

  • 1Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York 14853, United States.

ACS Omega
|January 25, 2021
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Summary
This summary is machine-generated.

A novel paper-based test simplifies antibiotic susceptibility testing for combating antimicrobial resistance. This user-friendly device offers a visual readout, aiding global health stewardship efforts.

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Area of Science:

  • Biomedical Engineering
  • Microfluidics
  • Antimicrobial Resistance Research

Background:

  • Antimicrobial resistance (AMR) poses a significant global health threat.
  • Effective antimicrobial stewardship requires accessible antimicrobial susceptibility testing (AST).
  • Traditional AST methods can be complex and resource-intensive.

Purpose of the Study:

  • To develop a user-friendly, paper-based diagnostic test for bacterial antibiotic susceptibility.
  • To simplify AST by integrating microfluidics for multiplexed testing.
  • To provide a semiquantitative visual readout for rapid susceptibility categorization.

Main Methods:

  • Development of an on-chip paper microfluidic device for multiplexed testing.
  • Utilizing a colorimetric readout for visual interpretation of results.
  • Testing with clinically relevant bacterial organisms and various antimicrobial agents.
  • Validation of the device's performance against traditional broth-dilution methods.

Main Results:

  • The paper-based test successfully provided a semiquantitative visual readout of bacterial antibiotic susceptibility.
  • The device enabled multiplexed testing of multiple antibiotic dilutions with a single sample addition.
  • The test demonstrated a low sample volume requirement and no need for humidity control during incubation.
  • The colorimetric readout strongly predicted the susceptibility category for tested organisms and agents.

Conclusions:

  • The developed paper-based microfluidic test is a user-friendly and accessible tool for antimicrobial susceptibility testing.
  • This innovation simplifies AST, addressing limitations of conventional methods and humidity control requirements.
  • The test's ability to provide a strong predictor of susceptibility category supports its role in antimicrobial stewardship efforts.