"Robots" swimming in the human body



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Swiss researchers have come up with what they call future drugs – small robots that can swim in the human body to deliver the drug into diseased tissue.

The robot, developed by researchers at the Swiss Federal Institute of Technology in Zurich and Lausanne, is about 5 millimeters long and can easily move in the narrow channels of the human body, changing its shape and speed to pbad into tiny blood vessels, reported the Daily Mail.

The so-called robots consist of heat-resistant gel, as well as nanoparticles, according to the study's authors, published in the journal Science Advances. To move them effectively, scientists have moved their movements from those of bacteria, which move from one place to another using a tail like a propeller or bad. The scientists tested the robots in a viscous fluid similar to that of the blood and showed their movement quickly.

"These devices have a special structure that allows them to adapt to the properties of the fluid in which they move," said Salman Sakar, a researcher who develops robotics. "Faced with a change in viscosity or composition, it changes shape to maintain its speed and maneuverability, without losing control of the direction of the movement," he said. Robot shape modifications can be programmed in advance to increase their efficiency.

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