Researchers present ‘self-healing’ wearable sensor
19/12/2019
They coated carbon fibre thread electrodes with a citric acid-based polymer. When cut, the threads rejoined through hydrogen bonding of the polymer.
The threads were sewn into a headband connected to a wireless electronic circuit board that could transfer data to a smart phone while the wearer pedalled on an exercise bike.
During cycling, the researchers cut the sensor threads with scissors, and the threads healed and returned to normal operation in 20 seconds.
The authors acknowledge funding from the Ministry of Education, University and Research (Italy) and King Saud University. The article is published in the American Chemical Society Review.
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