We call the technology Enzyme Targeted Fluorogenic Detection (ETFD). It is about identifying naturally occurring enzyme activities that are present only in the taxonomic group of interest e.g. bacteria or fungi. The enzyme activity is determined using highly sensitive fluorescence detection.
The technology is versatile allowing measurements of microbes in many complex or delicate samples for example, Inside porous cementitious materials, insulation materials, textiles, plant surfaces, yogurt, fertilizers, grain, fruit juice, cultural artfacts, and much more.