Researchers at Pohang University of Science and Technology in South Korea have designed a paper-thin robot that can exert tremendous force. Published in Nature Communications in July, the study suggests it may have applications in surgery or industrial machinery.
The robot mimics the proteins that drive human muscle movement. In humans, the motor protein myosin powers most motions, from organelle transport to muscle contraction. Inspired by myosin, scientists created a robot with surface protrusions that attach to various materials, enabling movement in multiple directions.
Paper-Thin Yet Powerful: A Blade-Shaped Robot That Crawls
Though as thin as paper, the blade-shaped device generates substantial force. It contains dozens of small, overlapping 3D air chambers and a network of pneumatic circuits. Even when folded, it can “crawl like a caterpillar” using just its protrusions.
The robot’s design enables it to navigate confined spaces and handle objects. Scientists say it could be applied in fields ranging from surgery to industrial operations. “By adjusting the pressure sequence, the robot can move across surfaces in six directions, at varying speeds and distances,” the study notes.
Traditional robots are usually made from rigid metal parts, which provide strength but restrict delicate movements and operation in tight spaces.
The new study offers a different approach, combining power with flexibility. The actuator performs tasks like clearing pipes, handling objects, and transporting items underwater, the study reports.
Navigating the Human Body with Finger-Like Accuracy
The South Korean-developed technology can operate within the human body. As demand rises for robots that can perform delicate internal procedures, this robot offers finger-like precision, allowing medical teams to use it through small surgical openings.
The team also created a mathematical model to forecast the robot’s movements, laying the groundwork for future projects and applications. Researchers aim to deploy the technology in surgery, industry, and exploration
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