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Flexible Electronics that Quadruple in Length Can Be Stretched A Million Times

EPFL researchers have developed conductive tracks that can be bent and stretched up to four times their original length, and they can be stretched a million times without cracking or interrupting their conductivity. Both solid and flexible, this new metallic and partially liquid film offers a wide range of possible applications. It could be used to make circuits that can be twisted and stretched - ideal for artificial skin on prosthetics or robotic machines. It could also be integrated into fabric and used in connected clothing. And because it follows the shape and movements of the human body, it could be used for sensors designed to monitor particular biological functions.

Topics:
Automation Electronic Components Electronics & Computers Materials Medical Robotics Semiconductors & ICs Sensors

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    Transcript

    00:00:06 these work contributes to the technological development of stretchable electronics which means electronic circuit that can stretch and relax and and and and cover any sort of surfaces The Innovation is on the format of the material we've developed which is a hybrid material based on liquid metal and a solid metallic Alloys this film is composed of gold and

    00:00:32 gallium and this uh the two materials are intertwined and they form a continuous film that maintains its conductivity even when the material is stretched to four times its length or it's stretched to millions of Cycles this can use in every aspect of a smart uh skin we can integrate conventional Electronics into assemblies that can stretch and carry power we can

    00:00:59 use it in Soft Robotics wearable application smart garment we can build sensors that are able to be integrated into a scene film and the form but we can also use it to construct actuators to give tactile feedback sh