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E-Textiles Able to Control Home Appliances

By American Chemical Society | June 15, 2018

Electronic textiles could allow a person to control household appliances or computers from a distance simply by touching a wristband or other item of clothing — something that could be particularly helpful for those with limited mobility. Now researchers, reporting in ACS Nano, have developed a new type of e-textile that is self-powered, highly sensitive, and washable.

E-textiles are not new, but most existing versions have poor air permeability, can’t be laundered, or are too costly or complex to mass-produce. Jiaona Wang, Hengyu Guo, Congju Li, and coworkers wanted to develop an E-textile that overcomes all of these limitations and is highly sensitive to human touch.

The researchers made a self-powered triboelectric nanogenerator by depositing an electrode array of conductive carbon nanotubes on nylon fabric. To make the E-textile washable, they incorporated polyurethane into the carbon nanotube ink, which made the nanotubes firmly adhere to the fabric. They covered the array with a piece of silk and fashioned the textile into a wristband. When swiped with a finger in different patterns, the E-textile generated electrical signals that were coupled to computers to control programs, or to household objects to turn on lights, a fan, or a microwave from across the room. The E-textile is breathable for human skin, washable, and inexpensive to produce on a large scale, the researchers say.

The authors acknowledge funding from the Beijing Natural Science Foundation, the National Natural Science Foundation, National Key R&D Project from Minister of Science and Technology, the Programs for Beijing Science and Technology Leading Talent, the Beijing Hundred, Thousand and Ten Thousand Talent Project, the General Program of Science and Technology Development Project of Beijing Municipal Education Commission of China, Beijing Institute of Fashion Technology, and the “Thousands Talents” Program for Pioneer Researcher and His Innovation Team.

Source: American Chemical Society

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