A flexible polymer circuit, shown here, could someday be replaced by a cheap and flexible paper circuit (Photo: Grant Hutchinson)
Treated with iron nitrate and heat, this everyday origami crane becomes conducting crane
The Max Planck logo is printed with catalyst, heated, then electroplated to prove its conductive properties
Given the low costs and extensive applications that could be possible with flexible paper circuit boards, we've seen many ideas for their production, from printing with silver ink to embedding chips within paper. Now, however, scientists have developed an elegant method for selectively changing the very nature of the paper itself into conductive graphite. Unlike polymer-based flexible circuits, these paper circuits are, ironically, able to withstand the high temperatures generally used in the production of electronics.
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