Microbial Fuel Cells
Electricity-producing bacteria could be an intriguing renewable energy source. Engineers have now developed a biobattery that contains three layers of different bacteria species, which together take in sunlight and produce electricity.
Microbial fuel cells are a promising new way to generate electricity, but so far they’re plagued by inefficiency. Researchers at UCLA have now found a way to wring more energy out of them, by feeding the bacteria silver to make them more conductive.
The bacteria-powered batteries of electrical engineer Seokheun Choi have taken on a number of interesting forms. For the first time, he has now woven his innovative fuel cells into a stretchable piece of fabric that could one day power wearable electronics with our body's own bacteria.