Electronic Tongues and Electronic Noses

Dear Colleagues,

A research trend in the field of chemical sensing and biosensing is that of following physiological principles in the animal senses of taste or olfaction, that is, using sets of non-specific receptors in a combinatorial manner plus complex interpretation of their responses by the brain. These bioinspired principles have evolved into analytical systems employing sensor arrays plus complex data treatment strategies, resembling olfaction and taste; they have received the informal names of ‘electronic noses’ (for gas analysis) and ‘electronic tongues’ (for liquid media). With this approach—methodologically equivalent, and only varying in the type of sensors used for the two sample types—qualitative applications aimed at identifying a situation, an episode or a sample variety can be developed, as well as quantitative applications in which a numeric response model is developed in order to estimate the concentration of certain component(s).
Different application fields have consolidated as the most frequent working cases: food and beverages, and environmental, pharmaceutical, medical or agricultural/industrial monitoring.
This Special Issue aims to cover developments in sensors for electronic noses and electronic tongues, data treatment strategies for qualitative and quantitative applications, plus their singular applications, including replicating the human sense of taste. In addition, the coupling of different devices in a combined electronic nose and tongue sensing system will be included.

Prof. Dr. Manel del Valle
Guest Editor

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