Self-de­struc­t­ing cir­cuit

Focus-Science and Technology - - Discoveries -

JAMES BOND’S GAD­GET sup­plier Q would be proud of this: an elec­tri­cal cir­cuit that dis­ap­pears af­ter one day, leav­ing no trace of its orig­i­nal pur­pose. Ge­or­gia In­sti­tute of Tech­nol­ogy de­signed it by de­posit­ing car­bon atoms on graphene – the ‘mir­a­cle ma­te­rial’ that’s also a form of car­bon. The atoms ini­tially form a cir­cuit but grad­u­ally move out of po­si­tion. The speed of this change de­pends on the tem­per­a­ture and spe­cially de­signed struc­tures on the sur­face.

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