Related Experiment Video
Updated: Aug 16, 2026

Measuring Phagosome pH by Ratiometric Fluorescence Microscopy
Published on: December 7, 2015
Approaches to Measuring Reductive and Oxidative Events in Phagosomes
Shranjit S Lail1, Dale R Balce2, Johnathan Canton2,3
1Department of Medical Science, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
Abstract:
The phagosome is a redox-active organelle. Numerous reductive and oxidative systems play both direct and indirect roles in phagosomal function. With the advent of newer methodologies to study these redox events in live cells, the details of how redox conditions change within the maturing phagosome, how they are regulated, and how they influence other phagosomal functions can be investigated. In this chapter, we detail phagosome-specific, fluorescence-based assays that measure disulfide reduction and the production of reactive oxygen species in live phagocytes such as macrophages and dendritic cells, in real time.
Related Concept Videos
Interfacial Electrochemical Methods: Overview
Redox Titration: Other Oxidizing and Reducing Agents
Controlled-Potential Coulometry: Electrolytic Methods
The chosen potential ensures...
Atomic Absorption Spectroscopy: Lab
Solutions containing organic solvents, such as low-molecular-mass alcohols, esters, or ketones, enhance absorbances by increasing nebulizer...
Flame Photometry: Lab

