Chemists at the Ural Federal University have created a sensor for determining the pH of human saliva. This is a fluorophore with strong and stable emission, which picks up the smallest fluctuations in the pH in biological fluids. The analysis is performed using microdoses of the substance and a spectrometer, in which the substance is irradiated with a special lamp. The pH data appears in 5-7 seconds. The first results of joint studies of saliva samples and the sensor, conducted by scientific groups of the Department of Organic and Biomolecular Chemistry and the Department of Analytical Chemistry are described in the journal Dyes and Pigments.
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Source: Phys.org