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Why bladder cancer cells that shed their Y chromosome become more aggressive

Nature Podcast

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How to Make a Material That Mimics Cartilage

Researchers have been trying to work out how it might be possible to replace cartilage. Cartilage has to withstand and dissipate the huge forces placed on it every time we take a hop, a skip or a jump. But making a material that mimics cartilage is easier said than done. You can make a material that's incredibly stiff, for example, but it won't be very tough. It would likely be brittle, which wouldn't make for a good cartilage substitute. In the body, cartilage in the joints manages to be both stiff and tough due to a tangled network of proteins and other molecules That help dissipate forces and give the tissue its shape.

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