Fast-moving soft electronic fish
Tiefeng Li,Guorui Li,Yiming Liang,Tingyu Cheng,Dai Jing,Xuxu Yang,Bangyuan Liu,Zedong Zeng,Zhilong Huang,Yingwu Luo,Tao Xie,Wei Yang +11 more
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TLDR
This work is able to advance a soft electronic fish with a fully integrated onboard system for power and remote control, driven solely by a soft electroactive structure made of dielectric elastomer and ionically conductive hydrogel.Abstract:
Soft robots driven by stimuli-responsive materials have unique advantages over conventional rigid robots, especially in their high adaptability for field exploration and seamless interaction with humans. The grand challenge lies in achieving self-powered soft robots with high mobility, environmental tolerance, and long endurance. We are able to advance a soft electronic fish with a fully integrated onboard system for power and remote control. Without any motor, the fish is driven solely by a soft electroactive structure made of dielectric elastomer and ionically conductive hydrogel. The electronic fish can swim at a speed of 6.4 cm/s (0.69 body length per second), which is much faster than previously reported untethered soft robotic fish driven by soft responsive materials. The fish shows consistent performance in a wide temperature range and permits stealth sailing due to its nearly transparent nature. Furthermore, the fish is robust, as it uses the surrounding water as the electric ground and can operate for 3 hours with one single charge. The design principle can be potentially extended to a variety of flexible devices and soft robots.read more
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Soft Robotic Grippers.
TL;DR: A critical overview of soft robotic grippers is presented, covering different material sets, physical principles, and device architectures, and improved materials, processing methods, and sensing play an important role in future research.
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Untethered soft robotics
TL;DR: This review focuses on recent advances in soft robotic actuation, sensing and integration as they relate to untethered systems, and considers the key challenges the field faces in engineering systems that could have practical use in real-world conditions.
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Artificial Muscles: Mechanisms, Applications, and Challenges.
Seyed M. Mirvakili,Ian W. Hunter +1 more
TL;DR: The structure, actuation mechanism, applications, and limitations of recently developed artificial muscles, including highly oriented semicrystalline polymer fibers; nanocomposite actuators; twisted nanofiber yarns; thermally activated shape-memory alloys; ionic-polymer/metal composites; dielectric-elastomer actuator; and pneumatic actuators are discussed.
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Exploration of underwater life with an acoustically controlled soft robotic fish
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References
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