一根纤维，收缩 95.1% ，拉伸 560% ，功率密度高达猎豹肌肉的 35 倍——软体机器人的仿生肌肉迎来了前所未有的性能突破。 软体机器人的发展，长期受困于一个核心矛盾：为了动作灵活、形变大，驱动结构必须足够软；但要想负载有力、稳定可靠，结构又得足够刚。 近年来兴起的扭转螺旋聚合物人造肌肉，因其大应变、低滞后和低驱动电压等特性被视为理想解决方案之一。然而，传统 TCP 肌肉往往缺少初 始节距，启动前必须先施加一个拉伸预载来分开相邻的螺旋。 这个预载如同一道枷锁，不仅限制了运动范围和可编程性，还可能在软体系统中引入非预期的初始变形，成为实际应用中的绊脚石。 ▍ 灵感迸发，从 "热处理"中发现新大陆 华南理工大学周奕彤课题组 （课题组网站： http://www.zhouyitonglab.com/index.html ） 一直致力于攻克这一难题。就在不久前，他们刚刚发表 研究，通过模仿染色体多级螺旋折叠结构，在单根纤维内实现了可编程的大变形与高负载。 如今，该团队再次取得突破，从制造工艺本身找到了更简洁、更普适的答案。 近日，他们在 《 Bioinspiration & Biomimetics 》 上发表最 ...

Core Insights - The article discusses the development of MyoStep, a flexible intelligent exoskeleton system designed specifically for children with movement disorders, which aims to improve their walking ability and quality of life [1][3]. Group 1: Product Overview - MyoStep is a lightweight, form-fitting, and discreet wearable device that integrates advanced smart materials and wearable sensor technology, designed to seamlessly fit into children's daily lives [3]. - The device is particularly suitable for children with cerebral palsy, a common movement disorder affecting 1-4 out of every 1,000 newborns globally, impacting muscle control and coordination [3][4]. Group 2: Technological Innovations - MyoStep represents a significant breakthrough in pediatric gait assistance, incorporating "artificial muscles," smart fabrics, and a multi-sensor network to enhance comfort, adaptability, and safety compared to traditional exoskeletons [3][4]. - The core of MyoStep consists of a wireless sensor network embedded in flexible fabric, which monitors and transmits user motion data in real-time to determine when to provide assistance to limbs [3][4]. Group 3: Safety Features - Safety is a critical consideration in the design of MyoStep, with all electronic components and actuators isolated from the skin to prevent irritation or discomfort [3]. - The system includes temperature monitoring and an emergency shut-off feature that automatically powers down the device if the surface temperature exceeds a safe threshold, preventing overheating [3]. Group 4: Future Developments - The team is continuously optimizing MyoStep's design to ensure it can adjust as children grow, meeting long-term usage needs [4]. - This innovative achievement not only offers new hope for children with cerebral palsy but also paves the way for future developments in pediatric rehabilitation engineering [4].