ИСТИНА

The lecture will consider the main currently existing approaches to the creation of "electronic nose" devices, the types of sensors used in these devices and limitations preventing their wide implementation in the industry. A portable "electronic nose" based on an array of thin-film organic field-effect transistors with various receptor layers of metalloporphyrins will be presented. In combination with machine learning algorithms, the developed “electronic nose” allows not only detection of toxic gases in ultra-low concentrations, but also effective recognition them in a wide range of relative humidity up to 95%, including the possibility of quantitative determination . In addition, using the developed device, we demonstrated the possibility of meat products spoilage detection at an early stage (Fig. 1), as well as the possibility of non-invasive express diagnostics of socially dangerous diseases transmitted by airborne droplets and associated with changes in metabolism, according to the analysis of the air exhaled by a person.