Origami biobattery is powered by dirty water

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Researchers at Binghampton University have developed a disposable biobattery shaped like a ninja star, which can provide power to small devices for up to 20 minutes using only a few drops of dirty water. When opened up, the eight modules of the USD 0.75 origami battery connect. Then, once dirty water is added, the bacteria powers a process of bacterial metabolism, which creates a small amount of electricity. This power can then be used in the field to run LEDs or small medical devices such as pregnancy tests and HIV tests.

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