Infrared thermography can detect previsual bacterial growth in a laboratory setting via metabolic heat detection.

ABSTRACT:

Aims

Detection of bacterial contamination in healthcare and industry takes many hours if not days. Thermal imaging, the measurement of heat by an infrared camera, was investigated as a potential noninvasive method of detecting bacterial growth.

Methods and results

Infrared thermography can detect the presence of Escherichia coli and Staphylococcus aureus on solid growth media by an increase in temperature before they are visually observable. A heat decrease is observed after treatment with ultraviolet light and heat increased after incubation with dinitrophenol.

Conclusions

Infrared thermography can detect early growth of bacteria before they are detectable by other microbiology-based method. The heat observed is due to the cells being viable and metabolically active,

SUBMITTER: Hunt B 

PROVIDER: S-EPMC9292240 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature