Truffles, Tea, and Bugs: Searching for Species with the eNose
摘要
The human nose consists of about 10 million sensory cells with approximately 400 different odor receptors. These receptors are specific to certain scents and generate a characteristic excitation pattern when activated by a mixture of fragrances. The brain then assigns this complex pattern to a specific smell that we have learned. This biological nose was the model for the development of an eNose at the Karlsruhe Institute of Technology (KIT), one of the leading scientific institutions for the development of electronic noses. A few years ago, researchers at KIT succeeded, for the first time, in developing an electronic nose for industrial and general applications, called “Kamina,” whose name stands for “Karlsruhe Micro Nose.” Such an eNose should be suitable for everyday use and be able to detect dangers such as cable fires or spoiled food better, faster, and more durably than our human or animal noses.