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  • Silver pen has the write stuff for flexible electronics

    A flexible array of LEDs mounted on paper. Hand-drawn silver ink lines form the interconnects between the LEDs.

    A flexible array of LEDs mounted on paper. Hand-drawn silver ink lines form the interconnects between the LEDs.

    Photo by Bok Yeop Ahn

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      A flexible array of LEDs mounted on paper. Hand-drawn silver ink lines form the interconnects between the LEDs.

      Photo by Bok Yeop Ahn

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      University of Illinois engineers developed a pen with conductive silver ink that can write electric circuits and interconnects directly on paper and other surfaces.

      Photo by Bok Yeop Ahn

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      A sketch of the painting "Sae-Han-Do" by Jung Hee Kim, drawn in conductive silver ink that powers an LED mounted on the paper.

      Photo by Bok Yeop Ahn

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