在命令下拆卸微机器人超级结构,用于运输和交付磁性微机器
Fabian C Landers1, Valentin Gantenbein1, Lukas Hertle1
1Multi-Scale Robotics Lab, Institute of Robotics and Intelligent Systems, ETH Zurich, Tannenstrasse 3, Zurich, 8092, Switzerland.
Advanced materials (Deerfield Beach, Fla.)
|December 15, 2023
概括
研究人员开发了可适应的磁性微机器人超结构. 这些超级结构克服了推进的局限性,使复杂的微量级交付任务在人体内.
科学领域:
- 机器人和微型工程机器人与微型工程
- 生物医学工程 生物医学工程
- 材料科学 材料科学 材料科学
背景情况:
- 磁性微机器人对于使用外部磁场在微观环境中导航至关重要.
- 传统微机器人的有限推进速度会阻碍机动性,因为磁力/扭矩依赖于磁体体积.
研究的目的:
- 提出一种新的微机器人超结构设计,克服推进能力的局限性.
- 为了证明超级结构的适应性复杂的微观规模的操作,包括有针对性的交付.
主要方法:
- 制造磁螺旋微机,由含有氧化铁纳米粒子 (IONPs) 的磁性凝纳米复合材料相互锁定.
- 使用微螺旋用于上层结构的机动和IONP用于磁性高温引起的底盘溶解.
- 展示了使用梯度,交替和旋转磁场的超结构导航,拆卸和单个螺旋体运动.
主要成果:
- 微机器人超结构在微通道中使用梯度磁场成功导航.
- 通过交替磁场诱导的磁热过热来控制地拆卸超结构并释放螺旋式微机.
- 通过旋转磁场在狭窄的空间中展示了单个螺旋式微机的螺栓螺丝机运动.
结论:
- 拟议的微型机器人超结构设计有效地解决了微型机器人的推进限制.
- 该系统对不同磁场输入的适应性使其能够进行复杂的多阶段操作.
- 这项技术有可能在具有挑战性的生物环境中进行复杂的输送程序,例如人体.
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