Novel H2 colourimetric indicator for screening the activity of H2-generating bacteria and measuring their total viable count (TVC) | Synapse
February 26, 2026Open Access
Novel H2 colourimetric indicator for screening the activity of H2-generating bacteria and measuring their total viable count (TVC)
Key Points
To develop a colourimetric H2 indicator for screening H2-generating bacteria and assessing total viable count (TVC).
Created colourimetric H2 indicator using methylene blue and colloidal Pt particles.
Encapsulated the mixture in a polymer film for stability.
Laminated between thin sheets for practical application.
The indicator successfully detects H2 production from bacteria.
Correlates well with total viable count (TVC) measurements.
Provides a simple and effective screening method for H2-generating bacteria.
Abstract
A novel colourimetric H2 indicator is described, comprising an intimate mixture of methylene blue, MB, and colloidal Pt particles, encapsulated in a polymer film and laminated between two thin sheets...