The idea of developing self-healing products is nothing new. A team of University of California San Diego engineers has developed a magnetic ink that can be used to make self-healing batteries and sensors. The key is having particles on both sides of a tear that are magnetically attracted to one another. That means a device printed with the ink can heal itself after a tear.
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Tears as wide as 3mm can be repaired. The findings will be made available in the Nov. 2 issue of Science Advances.
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