Dear Colleagues,

Electronic nose (E-nose) was first applied for disease detection in medicine during the mid-1980s, then its use was extended to the fields of plant and animal studies. To date, E-nose devices are one of the most innovative tools in medical, veterinary, environmental, and food industry research due to their large spectrum of applications, such as the early detection of different human and animal diseases, differentiation of plants, pests and infections, crop ripening processes, food and beverages quality or deterioration processes, and environmental pollution. This is possible mainly due to the capability of the sensors to differentiate between volatile biomarkers. These compounds refer to a large category of volatile organic compounds which are deemed to be strictly linked to a particular disease or stress condition, as well asmetabolic or compositional changes, which can be measured accurately and reproducibly. In this context, considerable progress has been made, particularly in the identification of key volatile biomarkers strictly linked to particular conditions (such as specific and rare disease), improvements in sensor design and precision, modelling for discriminant analysis. This Special Issue collects the actual and innovative advancements in utilizing the e-nose as a tool that can be used in different fields, such as early detections of human and animal diseases, plant–host interactions, soil and air pollution contaminants, as well as the identification of key factors for agri-food and the quality monitoring of beverages.

Dr. Giuseppina Paola Parpinello
Dr. Andrea Bellincontro
Dr. Margherita Modesti
Guest Editors

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• metabolites
• early detection
• diseases
• volatiles
• pollution
• noninvasive detection
• chemometrics
• gas sensor