3D-printed Smart Cap

Scientists using 3D-printed electronics, created a “smart cap” for food storage containers, that will let you know if your milk or juice has spoiled.

Researchers from the University of California at Berkley and National Chiao Tung University in Taiwan, created 3D-printed bottle caps that can detect spoilage.



Using the fused deposition modeling technology and a multiple-nozzle system with a printing resolution of 30 μm, 3D structures with both supporting and sacrificial structures are constructed.

An innovative approach to construct arbitrary 3D systems with embedded electrical structures as integrated circuitry for various applications, including the demonstrated passive wireless sensors.