Artificial muscles from KAIST are small enough to power robotic butterflies

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Researchers at the Korea Advanced Institute of Science and Technology, or KAIST, have developed an ultra-thin actuator for soft robotics. The artificial muscles, recently reported in the journal Science Robotics, were demonstrated with a robotic blooming flower brooch, dancing robotic butterflies, and fluttering tree leaves on a kinetic art piece. Actuators are the robotic equivalents of muscles, expanding, contracting, or rotating like muscle fibers in response to a stimulus such as electricity. Engineers around the world are striving to develop more dynamic actuators that respond quickly, can bend without breaking, and are very durable. Soft robotic muscles could have a wide variety of applications, from wearable electronics to advanced prosthetics.