水凝肌肉为可重新配置的微型元结构提供动力,具有广谱可编程性
Mingchao Zhang1, Aniket Pal1, Zhiqiang Zheng1
1Physical Intelligence Department, Max Planck Institute for Intelligent Systems, Stuttgart, Germany.
Nature materials
|August 21, 2023
概括
研究人员开发了一种可编程的战略,用于使用水凝作为人工肌肉进行重新配置的微型元结构. 这一突破允许各种几何转换用于加密和机器人的先进应用.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 纳米技术 纳米技术
背景情况:
- 响应刺激的几何转换是动态元材料性质的关键.
- 当前的方法面临着从单个几何结构编程多种配置的挑战,限制了多功能功能.
研究的目的:
- 为广泛的可重配置微型元结构提出可编程的战略.
- 在超材料中克服设计限制,实现多功能功能.
主要方法:
- 使用直线响应的透明水凝作为人工肌肉来激活微型元结构.
- 采用微型元结构转型的构建块的协作曲.
- 合理设计控制变形的3D打印参数和几何特征.
主要成果:
- 实现可控制的广谱图案转换,具有可编程的奇拉性和光学异构性.
- 根据设计参数证明局部同位素或异位素变形.
- 启用了可热重新配置的印刷金属板,具有像素对像素映射,用于信息显示/隐藏.
结论:
- 提出的策略使得多功能可重配置的微型元结构能够使用水凝驱动.
- 该机制适用于各种材料,并为加密,机器人,光子学和声学领域提供了机会.
相关概念视频
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01:12Adaptability of Cytoskeletal Filaments
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01:15Overview of Skeletal Muscle
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01:25Overview of Muscle Tissues
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Elasticity
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Elasticity
Elasticity is the ability of muscles to stretch and return to their original shape. This property is partly due to elastic fibers — macromolecules that run through the muscles. These fibers are firm and resilient,...
01:13Microscopic Anatomy of Skeletal Muscles
Skeletal muscle cells, also called muscle fibers, are distinctly elongated, multi-nucleated, slender biological units. They are packed with specialized structures designed to facilitate their primary function, which is contraction.
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The muscle sarcolemma is a plasma membrane enclosing each muscle cell that conducts electrical signals called action potentials. The sarcolemma extends into the cell to form T-tubules, ensuring the neural impulses are uniformly distributed across the entire muscle...
01:25Fascicle Arrangement in Skeletal Muscles
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The four primary types of muscle based on fascicle arrangement are:
The four primary types of muscle based on fascicle arrangement are: