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The latest news from the UW

Tag: Vikram Iyer

April 26, 2024

New circuit boards can be repeatedly recycled

A small brown circuit board sits on a gray background. To its right are a small copper plate, sheets of glass fibers in a crosshatch pattern, small chunks of vitrimer plastic that’s been removed from a circuit board, and a computer chip.

A team led by researchers at the University of Washington developed a new PCB that performs on par with traditional materials and can be recycled repeatedly with negligible material loss. Researchers used a solvent that transforms a type of vitrimer — a cutting-edge class of polymer — into a jelly-like substance without damage, allowing solid components to be plucked out for reuse or recycling. With these “vPCBs” (vitrimer printed circuit boards), researchers recovered 98% of the vitrimer and 100% of the glass fiber.

February 7, 2024

UW-developed smart earrings can monitor a person’s temperature

The temperature sensing earring is shown attached to a person’s ear. The portion touching the earlobe has a gemstone on it. Dangling a few centimeters below it is a small circular circuit board.

University of Washington researchers introduced the Thermal Earring, a wireless wearable that continuously monitors a user’s earlobe temperature. Potential applications include tracking signs of ovulation, stress, eating and exercise. The smart earring prototype is about the size and weight of a small paperclip and has a 28-day battery life.

December 11, 2018

Researchers create first sensor package that can ride aboard bees

the sensor backpack

Farmers can already use drones to soar over huge fields and monitor temperature, humidity or crop health. But these machines need so much power to fly that they can’t get very far without needing a charge. Now, engineers at the University of Washington have created a sensing system that is small enough to ride aboard a bumblebee.

October 9, 2018

Researchers develop 3D printed objects that can track and store how they are used

An e-NABLE hand with the bidirectional sensor on it

Engineers at the University of Washington have developed 3D printed devices that can track and store their use — without using batteries or electronics. Instead, this system uses a method called backscatter, through which a device can share information by reflecting signals that have been transmitted to it with an antenna.

August 17, 2016

Interscatter communication enables first-ever implanted devices, smart contact lenses, credit cards that ‘talk’ Wi-Fi

photo of three devices used in experiment

“Interscatter” communication developed by UW engineers allows power-limited devices such as brain implants, contact lenses, credit cards and smaller wearable electronics to talk to everyday devices such as smartphones and watches.