Scientists have built an AI-powered 'electronic tongue'
This new device can AI to distinguish between different coffee blends or detect when food or drink may be on the verge of going bad.
Ever wondered if that old carton of fruit juice in the back of your fridge is still safe to drink? A new “electronic tongue” could tell you.
The system, powered by artificial intelligence (AI), can identify issues with food safety and freshness. It also offers a glimpse at how AI makes decisions, researchers reported Oct. 9 in the journal Nature.
To make the tongue, researchers used an ion-sensitive field-effect transistor — a device that detects chemical ions. The sensor collects information about the ions in a liquid and turns that information into an electrical signal that can be interpreted by a computer.
"We’re trying to make an artificial tongue, but the process of how we experience different foods involves more than just the tongue," said study co-author Saptarshi Das, an engineer at Penn State University, in a statement. "We have the tongue itself, consisting of taste receptors that interact with food species and send their information to the gustatory cortex — a biological neural network."
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