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Related Experiment Videos

Gentamicin enzyme-linked immunosorbent assay for microdialysis samples.

S D Hanes1, V L Herring

  • 1Department of Clinical Pharmacy, University of Tennessee, College of Pharmacy, Memphis, TN 38163, USA. shanes@utmem.edu.

Therapeutic Drug Monitoring
|January 22, 2002
PubMed
Summary

A new enzyme-linked immunosorbent assay (ELISA) accurately quantifies gentamicin in microdialysis samples. This sensitive method offers a valuable alternative for researchers needing precise gentamicin analysis with minimal sample volume.

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Area of Science:

  • Pharmacology
  • Analytical Chemistry
  • Biomedical Engineering

Background:

  • Gentamicin is an important antibiotic with a narrow therapeutic index.
  • Accurate measurement of gentamicin in biological fluids is crucial for therapeutic drug monitoring.
  • Microdialysis allows for in vivo sampling but often yields small sample volumes, posing analytical challenges.

Purpose of the Study:

  • To evaluate a commercial gentamicin enzyme-linked immunosorbent assay (ELISA) for quantitative analysis in microdialysis samples.
  • To determine the assay's accuracy, precision, sensitivity, and validity for this specific application.
  • To establish a potentially superior alternative to existing gentamicin assay methods.

Main Methods:

  • Utilized a commercially available gentamicin ELISA kit.

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  • Performed quantitative analysis of gentamicin concentrations in prepared microdialysis fluid samples.
  • Assessed assay performance metrics including accuracy and precision across a defined concentration range.

    • Main Results:

    • The gentamicin ELISA demonstrated good accuracy and precision.
    • The assay was effective in the concentration range of 100 to 967 pg/mL.
    • The method proved to be highly sensitive and valid for microdialysis samples.

    Conclusions:

    • The developed quantitative ELISA is a sensitive and valid method for measuring gentamicin in microdialysis samples.
    • This ELISA assay presents a viable alternative for gentamicin analysis, especially when sample volume is limited.
    • The assay overcomes limitations of other methods regarding sample volume requirements and sensitivity.