Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering, Sun Yat-Sen University, 518107, Shenzhen, China.
CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, 230026, Hefei, Anhui, China.
Nat Commun. 2022 Jul 19;13(1):4177. doi: 10.1038/s41467-022-31900-5.
Soft magneto-active machines capable of magnetically controllable shape-morphing and locomotion have diverse promising applications such as untethered biomedical robots. However, existing soft magneto-active machines often have simple structures with limited functionalities and do not grant high-throughput production due to the convoluted fabrication technology. Here, we propose a facile fabrication strategy that transforms 2D magnetic sheets into 3D soft magneto-active machines with customized geometries by incorporating origami folding. Based on automated roll-to-roll processing, this approach allows for the high-throughput fabrication of soft magneto-origami machines with a variety of characteristics, including large-magnitude deploying, sequential folding into predesigned shapes, and multivariant actuation modes (e.g., contraction, bending, rotation, and rolling locomotion). We leverage these abilities to demonstrate a few potential applications: an electronic robot capable of on-demand deploying and wireless charging, a mechanical 8-3 encoder, a quadruped robot for cargo-release tasks, and a magneto-origami arts/craft. Our work contributes for the high-throughput fabrication of soft magneto-active machines with multi-functionalities.
能够进行磁控形状变形和运动的软磁活性机器在诸如无束缚的生物医学机器人等领域具有多样化的有前景的应用。然而，现有的软磁活性机器通常具有简单的结构，功能有限，并且由于复杂的制造技术而无法进行高通量生产。在这里，我们提出了一种简便的制造策略，通过引入折纸技术将二维磁性薄片转化为具有定制几何形状的三维软磁活性机器。基于自动化的卷对卷处理，这种方法允许制造具有各种特性的软磁折纸机器，包括大变形、按预定形状顺序折叠以及多种驱动模式（例如收缩、弯曲、旋转和滚动运动）。我们利用这些能力展示了一些潜在的应用：一个能够按需展开和无线充电的电子机器人、一个机械 8-3 编码器、一个用于货物释放任务的四足机器人以及一个磁折纸艺术/工艺品。我们的工作为具有多功能的软磁活性机器的高通量制造做出了贡献。
