Rice University researchers have successfully found a way to carve edible circuits on food. This will pave way for RFID tagged edibles that can help us track food from farm to tummy.
By using edible graphene or laser induced graphene (LIG)m, researchers will create creates a “foam made out of tiny cross-linked graphene flakes” that can carry electricity through carbon-rich products like bread, potatoes, and cardboard.
Researchers from Rice University Smalley-Curl Institute and Ben-Gurion University of the Negev say, “Overall, the process demonstrated that LIG can be burned into paper, cardboard, cloth, coal, potatoes, coconuts, toasted bread and other foods.”
The process can embed or burn patterns that could be used as supercapacitors, radio frequency identification (RFID) antennas or biological sensors. Based on these results, the researchers theorized that any substance with a reasonable amount of carbon can be turned into graphene. To test this theory, Tour’s team sought to burn LIG into food, cardboard and several other every day, carbon-based materials.
This might be a way for creating smart food in the future.
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