Robotics: Self-powered 'bugs' can skim across water to detect environmental data
Briefly

Over the past decade, Binghamton University Professor Seokheun 'Sean' Choi has developed bacteria-powered biobatteries with a 100-year shelf life, leading to the creation of the self-powered aquatic robot.
The new aquatic robots utilize a Janus interface that allows nutrients from the water to fuel bacterial spore production, offering reliable energy generation compared to other traditional systems.
Read at ScienceDaily
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