Edible Sensors Track Food Freshness

Oct-02-17 Edible, biodegradable microsensors could provide a better way to determine if food is fresh.

Developed by the team at ETH Zurich, the ultra-thin microsensors are made up of magnesium, silicon and nitride embedded in a starch-based polymer—all of which are safe to consume. The sensors are flexible enough to bend and stretch on the surface of the food, providing continuous, wireless tracking of the product’s temperature. According to the team, similar microsensors could be adapted to monitor other conditions, such as UV exposure and gas build-up.

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[TECHCRUNCH.COM]
[ETHZ.CH]

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