This week on the Nature Podcast: Molecular cages sift 'heavy' water from near-identical H2O
O but with deuterium isotopes in the place of hydrogen atoms.
Heavy water is useful in nuclear reactions, drug design and nutritional studies, but it's difficult to separate from normal water because they have such similar properties. Now, a team have developed a new separation method using tiny molecular cages, which they hope opens up more energy efficient ways to produce heavy water.
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