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Image: A biofilm-powered sensor, on the neck, that measures the mechanical signal of swallowing. Credit: Liu et al., 10.1038/s41467-022-32105-6 Researchers at the University of Massachusetts Amherst recently announced that they have figured out how to engineer a biofilm that harvests the energy in evaporation and converts it to electricity. This biofilm, which was announced in …
Relief at the pump? Scientists develop cheaper green fuels using iron instead of platinum. Imperial researchers have developed a hydrogen fuel cell that uses iron instead of rare and costly platinum, enabling greater use of the technology. The study is published in Nature Catalysis. Hydrogen fuel cells convert hydrogen to electricity with water vapour as …