Artificial olfactory sensors, also known as electronic noses, are devices designed to detect and identify odors in the environment. They mimic the biological sense of smell by using various sensors that respond to different chemical compounds in the air. These sensors can analyze complex mixtures of odors and provide data on their composition. These sensors have applications in various fields, including food quality control, environmental monitoring, and medical diagnostics. For instance, they can help detect spoilage in food products or identify harmful gases in industrial settings. Their ability to provide rapid and accurate odor detection makes them valuable tools in many industries.