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Watch: Gel-based robots that can catch and release live fish

by:QUESTT     2020-06-26
Robots are made by MIT.
Scientists designed a new transparent gel.
Robots that can perform many fast and powerful tasks, including playing underwater and catching fish and putting fish.
When the water is pumped in and out the robot moves and they are made entirely of gel
A tough rubber-like transparent material consisting mainly of water.
Each robot is a collection of hollow, well-designed, gel structures connected to rubber tubes.
When the researchers pump the water into the gel robot, these structures expand rapidly in the direction of making the robot curl or stretch.
A research group at the Massachusetts Institute of Technology (MIT) in the United States has manufactured several gel robots, including a finlike structure that swings back and forth, a hinged attachment that does kick action, and a soft, hand-
Shape robot that can squeeze and relax.
Since these robots are almost entirely driven and manufactured by water, their visual and auditory properties are similar to that of water, the researchers said.
They believe that if these robots are designed for underwater applications, they are actually invisible.
Led by Zhao Xuan, associate professor of mechanical engineering at MIT and Hyunwoo Yuk, a graduate student, the team is currently looking for ways to use gel robots for medical applications.
\"The gel is soft, humid and biocompatible and can form a more friendly interface with human organs,\" Zhao said . \".
\"We are actively working with medical groups to turn this system into soft robotic hands such as gel\" hands \", which may be more gentle with tissues and organs during surgery,\" he said
Yuk and Zhao 3-
D. printing and laser cutting technology to print their gel formula into the robot structure and other hollow units and glue it to a small rubber tube connected to an external pump.
In order to start or move the structure, the team used the syringe pump to inject water through the hollow structure, enabling them to quickly curl or stretch according to the overall configuration of the robot.
Yuk and Zhao found that by pumping water into the water, they can produce a fast and powerful reaction that enables the gel robot to produce a few tons of new force in a second.
The study was published in the journal Nature Communications. Watch the gel-
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