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Artificial Magnetic Skin Ensures the Force Is With You [Video]

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Artificial Magnetic Skin

Contamination could be avoided in the situation where laboratory equipment can be controlled by the wave of a hand. © 2019 KAUST

A magnetic skin that is safe and comfortable to wear could open the door to a wide range of wireless, remotely controlled applications.

Who has not unleashed their inner Jedi to use “the force” to open automatic doors at the shopping mall? A novel magnetic skin has been developed at KAUST that can remotely control switches and keyboards with the wave of a hand or the blink of an eye.

The artificial skin is wearable, flexible, lightweight and magnetized, making it useful in a variety of applications without the need for a wired connection to other devices.

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KAUST electrical engineers have developed an artificial electronic skin that requires no power supply or data storage. © 2019 KAUST

“Artificial electronic skins typically require a power supply and data storage or a communication network. This involves batteries, wires, electronic chips and antennas and makes the skins inconvenient to wear,” says electrical engineer Jurgen Kosel, who led the project. “Our magnetic skin does not require any of this. To the best of our knowledge, it is the first of its kind.”

Abdullah Almansouri, Liam Swanepole and Jurgen Kosel

Left to right: Abdullah Almansouri, Liam Swanepole and Jurgen Kosel discuss the results of their tests on the magnetic skin. © 2019 KAUST

The skin is made using an ultraflexible, biocompatible polymer matrix filled with magnetized microparticles. “It can be customized into any shape and color, making it imperceptible or even stylish,” says KAUST Ph.D. student, Abdullah Almansouri. The fabrication process is inexpensive and simple. “Anyone can start their own artificial skin project after a few minutes of training if they have the tools and materials,” he says.

The team tested their magnetic skin for tracking eye movements by attaching it to an eyelid with a multi-axis magnetic sensor located nearby. Eye movement changed the magnetic field detected by the sensor whether the eyelid was opened or closed. The sensor can be incorporated into eyeglass frames or a sleeping mask or applied as an electronic tattoo on the forehead. It has the potential for application as a human-computer interface for people with paralysis or for gaming; for analyzing sleep patterns; or for monitoring eye conditions, such as drooping eyelids or driver alertness.

Demonstrate Magnetic Skin

Liam Swanepole (left) and Abdullah Almansouri demonstrate the flexibility of their electronic skin. © 2019 KAUST

The team also attached the skin to a latex glove fingertip and placed a sensor inside a light switch. When the magnetic skin comes close to the sensor—a distance that can be modified—the light switches on or off. This application could be especially relevant in laboratories and medical practices, where contamination is a concern.

Kosel and his team are now extending the application so it can be used in a gesture-controlled wheelchair, a contact-free human-computer interface, and for noninvasive biomedical device localization.

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Reference: “An Imperceptible Magnetic Skin” by Abdullah S. Almansouri, Nouf A. Alsharif, Mohammed A. Khan, Liam Swanepoel, Altynay Kaidarova, Khaled N. Salama and Jurgen Kosel, 16 August 2019, Advanced Materials Technologies.
DOI: 10.1002/admt.201900493

Source of Article
Author: King Abdullah University of Science & Technology (KAUST)

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