A team of researchers studying a bacteria that is closely related to those responsible for tuberculosis and leprosy have discovered an enzyme, called Huc, which can convert hydrogen into electricity.
The enzyme is used by the bacterium Mycobacterium smegmatis to draw energy from atmospheric hydrogen, allowing it to survive in nutrient-poor environments.
By studying the enzyme, researchers have found a new energy source that could be used to power small portable devices, such as biometric sensors, digital clocks, and calculators.
With more concentrated hydrogen, Huc produces more electrical current, meaning it could potentially power more complex devices such as smartwatches or even cars.
The enzyme can consume hydrogen at concentrations as low as 0.00005% of that found in the air.
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