New Gold Edible Sensors Can Tell You If Your Food is Spoiled

Imagine if you could tell if the inside of a watermelon has gone bad just by waving your smartphone over it? Well now you can! Thanks to biomedical engineers at Tufts University who have now created edible spoilage indicators that are activated by smartphones.

How does it work? A gold antennae encased in a film made from purified silk substrate picks up chemicals released when food starts to spoil sends out an electromagnetic signal that can be picked up by an external reader such as a smartphone. I can’t wait till I see everyone in the produce aisle waving their smartphones around like they’re swatting flies.

[photo via news.discovery.com]

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