Professors Jennifer Lewis and Jennifer Bernhard at the University of Illinois have come up with a way to draw circuits with a pen. Not circuit diagrams. Any old pen can do that. No, the pen is a ...

, and not much else. But if you replace that metallic ink with real silver, you get something quite remarkable: a pen that can draw functioning circuits on paper. Engineers at the University of ...

Japanese startup invents a marker pen with conductive ink allowing the user to draw electrical circuits. It's being tipped to revolutionize the electronics industry. A Tokyo-based startup has invented ...