Strain-programmable fiber-based artificial muscle
Strain-programmable fiber-based artificial muscle
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DOI：
10.1126/science.aaw2502
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发表时间：
2019-07-12
期刊：
影响因子：
56.9
通讯作者：
Anikeeva, Polina
中科院分区：
文献类型：
--
作者：
Kanik, Mehmet;Orguc, Sirma;Anikeeva, Polina
人造肌肉可能会加速机器人学、触觉学和假肢学的发展。虽然聚合物基致动器的进步带来了前所未有的优势，但大规模生产这些尺寸可调的设备仍然是一个挑战。我们应用高通量迭代纤维拉伸技术来创建尺寸跨越三个数量级的应变可编程人工肌肉。这些基于光纤的致动器是热和光学可控的，可以举起超过650倍于自身重量的物体，并承受> 1000%的应变。在这些基于纤维的肌肉内集成导电纳米线网格提供压阻应变反馈，并在>10（5）个变形周期内展示长期弹性。这些基于光纤的致动器的可扩展尺寸及其强度和响应性可以将其影响从工程领域扩展到生物医学应用。
Artificial muscles may accelerate the development of robotics, haptics, and prosthetics. Although advances in polymer-based actuators have delivered unprecedented strengths, producing these devices at scale with tunable dimensions remains a challenge. We applied a high-throughput iterative fiber-drawing technique to create strain-programmable artificial muscles with dimensions spanning three orders of magnitude. These fiber-based actuators are thermally and optically controllable, can lift more than 650 times their own weight, and withstand strains of >1000%. Integration of conductive nanowire meshes within these fiber-based muscles offers piezoresistive strain feedback and demonstrates long-term resilience across >10(5) deformation cycles. The scalable dimensions of these fiber-based actuators and their strength and responsiveness may extend their impact from engineering fields to biomedical applications.