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Edible graphene could embed RFID tags in food

Graphene is extremely thin and strong, a great conductor of heat and electricity, is antibacterial and can even hunt down cancer – and now you can have your wonder material and eat it, too. The lab of James Tour at Rice University has demonstrated a way to etch graphene onto food like bread and potatoes, as well as materials like cardboard and cloth, where it could then act as an RFID tag.
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