Say 'ahhh': This ecofriendly tongue depressor checks vitals

Doctors often use tongue depressors when peering in a patient's mouth and throat. But what if that flat wooden spatula could actively evaluate the patient's health? That's the premise of an ecofriendly disposable sensor, ...

Cubes outperform spheres as catalyst particles

To date, nanoparticles as catalysts for green hydrogen have been like rowers in an eight: researchers could only measure their average performance, but couldn't determine which one was the best. This has now changed following ...

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