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The Role of Actin and Myosin in Non-muscle Cells

The Role of Actin and Myosin in Non-muscle Cells

Actin and myosin or actomyosin filaments also play a significant role in cells other than those involved in muscle contraction (which occurs within the sarcomere of muscle cells). The mechanism of non-muscle cell contractile bundles was first observed in Dictyostelium and Acanthamoeba. In non-muscle cells, two bundles are commonly found: stress fibers and actomyosin adherence belts. These contractile bundles are smaller and less organized than the ones found in muscle cells. They are held...

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相关实验视频

Updated: Jun 3, 2025

Bioinspired Soft Robot with Incorporated Microelectrodes

Bioinspired Soft Robot with Incorporated Microelectrodes

Published on: February 28, 2020

生物灵感的碳基人工肌肉具有精确和持续的变形能力.

Xiaodong Li¹, Meiping Li¹, Mingjia Zhang²

¹CAS Key Laboratory of Organic Solids, Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.

National science review

|January 7, 2025

概括

研究人员开发了一种基于碳的新型人工肌肉,替代石墨烯肌肉 (HsGDY-M),灵感来自蝶鼻. 这种人工肌肉为微机器人和精准医学应用提供了精确的控制和适应性.

关键词:

执行器执行器的执行器人工肌肉是一种人造肌肉.碳基材料是基于碳的材料.在 graphdiyne 中使用.具有刺激反应的材料.

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Last Updated: Jun 3, 2025

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Published on: February 28, 2020

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科学领域:

材料科学材料科学材料科学
机器人技术机器人技术机器人技术
生物模拟学是一种生物模拟学.

背景情况:

微机器人,智能控制和精密医学的进步需要复杂的人工肌肉启动系统.
碳材料具有理想的性能,如轻量,强度,导电性和灵活性,这使得它们对人工肌肉有很大的希望.

研究的目的:

开发一种新的基于碳的人工肌肉,具有精确的控制,高稳定性和环境适应性.
用一种新材料模仿蝶鼻的可逆和可调的变形能力.

主要方法:

使用具有不对称表面结构的新兴替代石墨烯 (HsGDY) 薄膜制造替代石墨烯肌肉 (HsGDY-M).
描述HSGDY-M的变形能力,尺寸鱼性和性能稳定性在各种温度范围内 (低至-25°C).

主要成果:

通过碳键转换引发的可逆,快速和持续调节的变形HsGDY-M证明了.
人工肌肉成功地操作了一个机器人机械手臂,举起重量高达其重量的11倍的物体,并表现出适应极端温度的能力.
HsGDY-M的响应性使惰性材料可以转化为执行器,并应用于实时的人类手指曲跟踪系统.

结论:

作为下一代人工肌肉,HSGDY-M具有显著的潜力,用于先进的微机器人和精密医学.
HsGDY-M 的仿生设计和可调节特性为软机器人和人机界面提供了新的可能性.