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Photosynthesis Power: A Reliable and Renewable Biological Photovoltaic Cell
Algae-Powered Computing
Scientists used a widespread species of blue-green algae to power a microprocessor continuously for a year — and counting — using nothing but ambient light and water. Their system has the potential as a reliable and renewable way to power small electronic devices.
The system, comparable in size to an AA battery, contains a type of non-toxic algae called Synechocystis that harvests energy naturally from the sun through photosynthesis. The tiny electrical current this generates then interacts with an aluminum electrode and is used to power a microprocessor.
