Researchers aim to print edible RFID tags directly on to food

Graphene on toast, anyone? — Rice University — “The Rice lab of chemist James Tour, which once turned Girl Scout cookies into graphene, is investigating ways to write graphene patterns onto food and other materials to quickly embed conductive identification tags and sensors into the products themselves… ‘This is not ink,’ Tour said. ‘This is taking the material itself and converting it into graphene.'”