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Microbial Growth Measurement: Direct Methods

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Related Experiment Video

Updated: Jun 22, 2026

High-Resolution Respirometry to Assess Bioenergetics in Cells and Tissues Using Chamber- and Plate-Based Respirometers
09:53

High-Resolution Respirometry to Assess Bioenergetics in Cells and Tissues Using Chamber- and Plate-Based Respirometers

Published on: October 26, 2021

Quantitative microplate-based respirometry with correction for oxygen diffusion.

Akos A Gerencser1, Andy Neilson, Sung W Choi

  • 1Buck Institute for Age Research, Novato, CA, USA. agerencser@buckinstitute.org.

Analytical Chemistry
|June 27, 2009
PubMed
Summary
This summary is machine-generated.

This study introduces a new algorithm to correct oxygen consumption rate measurements in microplate respirometry. The method accounts for oxygen diffusion, improving assay accuracy and data reliability for biological research.

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Published on: July 25, 2025

Area of Science:

  • Biotechnology
  • Cellular Respiration Analysis
  • Biophysics

Background:

  • Microplate-based respirometry offers high throughput and reduced sample requirements for oxygen consumption assays.
  • Diffusion phenomena, including O(2) leakage and gas diffusion through microplate materials, introduce inaccuracies in measurements.
  • Polystyrene microplates act as gas reservoirs, affecting oxygen flux and biasing consumption rate calculations.

Purpose of the Study:

  • To develop and validate a compartment model-based correction algorithm for accurate oxygen consumption rate (OCR) determination.
  • To address and correct for oxygen diffusion-related artifacts in microplate respirometry.
  • To enhance the utility of plate-based respirometers for biological oxygen consumption studies.

Main Methods:

  • Development of a compartment model-based correction algorithm to deconvolute biological OCR from measured oxygen levels.
  • Optimization of the algorithm for the Seahorse XF24 extracellular flux analyzer.
  • Biological validation using mouse cortical synaptosomes and liver mitochondria, compared with Clark electrode oxygraph measurements.

Main Results:

  • The developed algorithm effectively corrects for oxygen diffusion biases in microplate respirometry.
  • Validated results show increased accuracy in oxygen consumption rate measurements.
  • The algorithm expands the measurable range of OCR, improves temporal resolution, and allows for longer measurement durations.

Conclusions:

  • The compartment model-based correction algorithm significantly improves the accuracy and reliability of microplate respirometry.
  • This method enhances the capabilities of plate-based respirometers for studying cellular respiration.
  • The general format of the algorithm makes it applicable to various respirometer systems and research applications.