Micro-battery can be activated by saliva

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Researchers at Binghamton University, in New York, have developed a bacteria-powered battery which is activated by saliva. The batteries were designed by Binghamton University Electrical and Computer Science Assistant Professor Seokheun Choi and are intended for use as micro-power sources in conditions where normal batteries are not ideal. Choi envisions them used to power point-of-care diagnostic biosensors in resource-limited regions. Says Choi, “Typically, those applications require only several tens of microwatt-level power for several minutes, but commercial batteries or other energy harvesting technologies are too expensive and … pose environmental pollution issues.” Choi, and research assistant Maedeh Mohammadifar, created the…

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