Microscopic Robots Now Swim: A Medical Revolution?

Researchers have overcome a long-standing physics barrier by developing the world's smallest fully programmable robots, each measuring about 200 by 300 by 50 micrometers. These microscopic machines are capable of autonomous movement, a feat previously confined to science fiction.

Instead of traditional propellers or legs, the robots utilize electrokinetics. They generate a small electrical field that manipulates surrounding ions to propel themselves through fluid. This design ensures extreme durability and ease of handling, even with delicate laboratory equipment.