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An RFID-reading, motion-sensing wristband buzzes to tell health-care workers if they are washing their hands properly.
The first near-field communication apps are trickling in, but the handsets that can use them remain in the minority.
Researchers beat automatic locking and ignition systems.
Plastic RFID tags will be the first product to use printed nanotube transistors.
Verayo is harnessing unique manufacturing flaws to make RFID tags that are impossible to copy.
A tiny radio chip implanted in a moth harvests power and senses neural activity.
The simple, non-polluting battery could be used in compact devices.
The world’s most popular wireless smart card can be copied.