Moth-shaped robot from Tartu and IIT grows its own UV sensor from circulating artificial blood

Researchers at the University of Tartu and the Italian Institute of Technology built a 3D-printed moth robot whose internal veins carry about 3 ml of fluid containing pyrrole. Under UV light and a stencil, the fluid turns into conductive polypyrrole in a wing patch, creating a UV sensor that triggers an LED or wing flaps. The work, in Advanced Science, points to robots adding sensors in the field.

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