Chinese scientists create tiny robotic vacuum to hunt radioactive pollution and clean the world's oceans

Chinese scientists have built microscopic robots that actively hunt and capture uranium dissolved in seawater, rather than waiting for it to drift by. These tiny machines, smaller than a human hair, can bind up to 406mg of uranium per gram of material and move faster under light exposure. With oceans holding 4.5 billion tonnes of uranium, China sees this as a strategic solution to its growing nuclear fuel import dependency.