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相关概念视频

Ferromagnetism01:31

Ferromagnetism

Materials like iron, nickel, and cobalt consist of magnetic domains, within which the magnetic dipoles are arranged parallel to each other. The magnetic dipoles are rigidly aligned in the same direction within a domain by quantum mechanical coupling among the atoms. This coupling is so strong that even thermal agitation at room temperature cannot break it. The result is that each domain has a net dipole moment. However, some materials have weaker coupling, and are ferromagnetic at lower...

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相关实验视频

Updated: May 11, 2026

Using a Microfluidics Device for Mechanical Stimulation and High Resolution Imaging of C. elegans
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微结构增强的磁性驱动软执行器具有高强度和大变形.

Huimin Zhu1, Weilun Song2,3, Hongmiao Tian1

  • 1Micro-and Nano-technology Research Center, State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China.

ACS applied materials & interfaces
|September 16, 2025
PubMed
概括

研究人员开发了具有受控粒子聚合的新型磁性软执行器,以提高灵活性和磁力. 这些先进的执行器使复杂的运动和软机器人和生物医学设备中的各种应用成为可能.

关键词:
灵活性 灵活性 灵活性磁性软执行器的执行器微观尺度结构结构的结构软机器人的软机器人强大的磁力强度强烈的磁力.

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科学领域:

  • 软机器人软机器人 软机器人
  • 生物医学工程 生物医学工程
  • 材料科学是一种材料科学.

背景情况:

  • 磁性软执行器为生物医学和软机器人应用提供生物相容性和磁性响应.
  • 由于粒子分布均,传统的设计在磁力和灵活性之间的权衡中扎.

研究的目的:

  • 为磁性软执行器开发一种新的微尺度结构,克服传统设计的局限性.
  • 为了实现控制的磁粉聚合,实现协同灵活性和磁力.

主要方法:

  • 使用微尺度结构受约束的流体形成技术.
  • 开发了带有受控磁粉聚合的执行器.

主要成果:

  • 实现了具有低弹性模量 (0.5 MPa) 和高磁力 (12 mN) 的执行器.
  • 已证明能够进行复杂的生物运动 (例如,围心,,抓住) 的执行器.
  • 展示了具有虫运动,游泳,承载和四足爬行能力的生物机器人.

结论:

  • 新的微尺度结构有效地解决了软执行器中灵活性和磁力之间的权衡问题.
  • 开发的执行器表现出增强的性能和多功能性,为先进的生物医学设备和软机器人技术铺平了道路.
  • 该技术允许将执行器定制为复杂的几何形状,并编程复杂的生物运动.