As described in a study published in the American Chemical Society journal ACS Nano, a team of scientists led by Yieu Chyan and Ruquan Ye of Rice University in Texas, US, used a commercial laser to create graphene patterns on a variety of materials, including paper, cardboard, cloth, coal, potatoes, coconuts, and toast. 

“This is not ink,” says James Tour, Rice University chemist and co-author of the study. “This is taking the material itself and converting it into graphene.”

Cosmos

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