Researchers say they have designed an artificial enamel that’s even tougher and more durable than the real thing.
Enamel enables teeth to take a stomping and keep on chomping. The hardest tissue in the human body is tough enough to resist dents, yet elastic enough not to crack during decades of jaw smashing. It’s so incredible that scientists haven’t created a substitute that can match it—until now.
Previously, researchers attempting to construct artificial enamels have struggled to achieve those different levels of organization. In the past, researchers have tried In the new study, scientists tried to mimic nature’s enamel assembly. Instead of peptides and other biological tools, they used extreme temperatures to coax the wires into an orderly formation. As with earlier construction of artificial enamels, the team built its new material from wires of hydroxyapatite—the same mineral that makes up real enamel. But unlike in most other synthetic enamels, the researchers encased the wires in a malleable metal-based coating.
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