Materials
Advances in materials technology have a huge impact on improvements in science and technology. Whether it's the latest wonder material, such as graphene, or uncovering the secrets to the longevity of ancient Roman concrete, material science is the reason so much of our technology is more than the sum of its parts.
The wonderful potential of graphene has been well covered on our pages. One thing missing has been a cost-effective way to produce the wonder material, but a team of researchers now believe they may have discovered a key to this hiding in the bark of Australian eucalyptus trees.
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We've already heard about water-repellant materials that copy the structure of the lotus leaf. Now, however, scientists have created a flexible optical plastic that wards off liquids even better, and it was inspired by something else – the humble Enoki mushroom. -
The promise of reusable sticky things, from Post-it Notes to Blu Tack, has never quite been fulfilled. They're just never quite as sticky the second time around, or the third. But now, a team of engineers thinks it has an answer, inspired by one of nature's great stickers, the humble, slimy snail.
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For years now, scientists have marvelled at the insulating qualities of polar bear fur, suggesting that it could inspire manmade heat-retaining materials. Well, Chinese researchers have now developed just such a substance, which reportedly outperforms real fur.
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How do you stop bullets using the lightest material possible? Researchers working on this problem have developed a new type of bulletproof material comparable in performance to conventional armor, but with just half the weight.
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While shape-memory materials do have some interesting applications, many of them require the application of heat in order to change shape – and that could cause problems, in environments such as the human body. A new material, however, relies instead on a magnetically-responsive liquid.
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If we're ever going to get on top of the whole plastic waste problem, a partial solution may lie in substances that fix themselves when broken, instead of having to be discarded. With that in mind, many groups have been developing self-healing materials – and one of the latest functions like blood.
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