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Touch-sensitive elastic fibres ‘can be used to interface with wearable electronics’
Soft, stretchable fibres that can detect touch and torsion have been developed as a means of interfacing with electronic devices.
A team from North Carolina State University have created the new fibres, which are made of tube-like polymer strands that contain a liquid metal alloy, eutectic gallium and indium, and measure only a few hundred microns in diameter, making them slightly thicker than human hair.
They offer capacitive response to touch and can also respond to being twisted or stretched, giving users a range of different ways in which to interact with the material.
Michael Dickey, a professor of chemical and biomolecular engineering at North Carolina State University, said: "The advantage of our sensor is that it is built from elastic materials and can therefore be twisted 100 times more – two orders of magnitude – than existing torsion sensors."
It is hoped that these microscopic fibres may be useful for integrating electronics in new ways, including in the development of wearable devices and technology.
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