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Self-healing


— Materials

Coating highlights microscopic cracks, before they lead to disaster

Whether they're on airplanes, bridges or pipelines, even the tiniest of cracks can fast lead to catastrophic failures. That's why it's important to identify them as early as possible, before they get out of hand. With that in mind, scientists at the University of Illinois have created a new polymer coating that can be applied to a wide variety of structural materials. When those materials crack – even a little – the polymer changes color to let inspectors know that something's up.

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— Materials

Self-adaptive composite heals itself and returns to its original shape

Self-healing materials that can repair cracks and other damage automatically have been the dream of scientists and engineers for decades, but a team of scientists at Rice University have come up with a new twist. It's a Self-Adaptive Composite (SAC) that is not only self healing, but also has reversible self-stiffening properties that allow it to spring back into shape like a sponge.

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— Materials

Self-healing bioplastic – just add water

Imagine if things like undersea cables or medical implants could simply heal themselves back together if severed – it would certainly be easier than having to go in and fix them. Well, scientists at Pennsylvania State University are bringing such a possibility closer to reality. They've created a moldable polymer that heals itself when exposed to water – and it's based on squid sucker ring teeth.

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— Space

Self-healing material could plug holes in space ships

As the movies have shown us, space travel is an intimidating prospect, what with the possibilities of running out of air, the rocket engines conking out, or the shipboard computer deciding to bump off the crew. Another danger is fast-flying orbital debris piercing the hull. Scientists may be on their way to a solution to that one, however, in the form of a new self-healing material.

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— Electronics

Self-repairing, reconfigurable electronic circuits take a step closer to reality

If electronic circuits could automatically reconfigure their internal conductive pathways as required, microchips could function as many different circuits on the one device. If many of these devices were then incorporated into larger pieces of equipment, such as robots, it is possible that self-sufficient, self-sustaining machines could change to suit their environment or even reconfigure broken or damaged pathways to repair themselves. Promising applications like these – and more – could one day be made possible if technology resulting from recent research into atomic manipulation at École polytechnique fédérale de Lausanne (EPFL) comes to fruition. Read More
— Science

Regenerating plastic is better on the "hole"

Dropping your mobile phone can ruin your whole day as you look down at the spiderweb of cracks surrounding a small hole in the once-pristine plastic case. Now imagine watching as those cracks and that hole seal up by themselves, leaving behind a completely healed case. That may sound like science fiction, but it may not be for long with a team of researchers at the University of Illinois having developed a new system that doesn't just repair minor cracks in plastic, but regenerates to heal large holes. Read More
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