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Can AI Crave a Favorite Food?

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The artificial tastebuds comprise tiny, graphene-based electronic sensors called chemitransistors that can detect gas or chemical molecules. The other part of the circuit uses memtransistors, transistors that remember past signals, made with molybdenum di

Pennsylvania State University researchers developed a graphene-based electronic sensor that can "taste" flavor profiles such as sweet and salty.

Credit: Das Research Lab/Pennsylvania State University

Pennsylvania State University (Penn State)'s Saptarshi Das and colleagues have emulated taste's influence on food cravings and requirements with an electronic "tongue" and "gustatory cortex" fabricated from two-dimensional materials.

The tongue incorporates graphene-based chemitransistors, while the gustatory complex integrates a physiology-driven "hunger neuron," a psychology-driven "appetite neuron," and a "feeding circuit" using molybdenum disulfide memtransistors.

Penn State's Subir Ghosh said the device can sense sodium ions in sodium chloride samples, effectively "tasting" salt.

The sensor is applicable to all five primary taste profiles; potential uses could include artificial intelligence (AI)-curated diets based on emotional intelligence for weight loss and tailored meal options in restaurants, according to Das.

From Penn State News
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