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Scientists have developed a hair-sized robotic filament that can travel through narrow blood vessels. The device has a small propeller and a flexible body that can navigate through complex pathways. It is designed to deliver drugs directly to specific areas of the body, such as within the brain or to a tumor. The device has been successfully tested in pigs, and the researchers believe it could eventually be used in humans to provide targeted therapy.

Scientists have created a hair-sized robotic filament that can move through tight blood vessels. With a small propeller and flexible body, it can maneuver through intricate pathways. The purpose is to transport drugs directly to specific parts of the body – like the brain or a tumor. After successful trials in pigs, the researchers anticipate its application for targeted therapy in humans.