This AI tongue can tell if a flavor is sweet or salty

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The device can sense sodium ions when detecting salt. “This means the device can ‘taste’ salt,” said Subir Ghosh, co-author of the“If you are someone fortunate to have all possible food choices, you will choose the foods you like most,” said Saptarshi Das, associate professor of engineering science and mechanics at Penn State and corresponding author of the study.

The other part of the circuit uses memtransistors, a transistor that remembers past signals made with molybdenum disulfide. This allowed the researchers to design an “electronic gustatory cortex” that connects a physiology-driven “hunger neuron,” psychology-driven “appetite neuron,” and a “feeding circuit.

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