EPFL scientists have developed a new type of composite thread that varies in stiffness depending on its temperature. Applications range from multifunctional robots to knitted casts, and even tunable medical devices. A new type of thread has been developed at EPFL that varies in stiffness depending on its temperature. This new structure could be used in future robots, orthopedics and even medical devices for biopsy. The results are now published online in Advanced Materials. A drone that integrates these threads of variable stiffness can morph from a flying device into a robotic car : the motors can be used as either propellers or as wheels, depending on their position which can be adjusted thanks to the threads. When knitted, the thread could be used as an electronic cast for rehabilitation of broken joints.
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