控制重构
超材料
光子学
计算机科学
材料科学
自愈水凝胶
各向同性
3D打印
各向异性
光电子学
光学
嵌入式系统
物理
高分子化学
复合材料
作者
Mingchao Zhang,Aniket Pal,Zhiqiang Zheng,Gaurav Gardi,Erdost Yıldız,Metin Sitti
出处
期刊:Nature Materials
[Springer Nature]
日期:2023-08-21
卷期号:22 (10): 1243-1252
被引量:13
标识
DOI:10.1038/s41563-023-01649-3
摘要
Stimuli-responsive geometric transformations endow metamaterials with dynamic properties and functionalities. However, using existing transformation mechanisms to program a single geometry to transform into diverse final configurations remains challenging, imposing crucial design restrictions on achieving versatile functionalities. Here, we present a programmable strategy for wide-spectrum reconfigurable micro-metastructures using linearly responsive transparent hydrogels as artificial muscles. Actuated by the hydrogel, the transformation of micro-metastructures arises from the collaborative buckling of their building blocks. Rationally designing the three-dimensional printing parameters and geometry features of the metastructures enables their locally isotropic or anisotropic deformation, allowing controllable wide-spectrum pattern transformation with programmable chirality and optical anisotropy. This reconfiguration mechanism can be applied to various materials with a wide range of mechanical properties. Our strategy enables a thermally reconfigurable printed metalattice with pixel-by-pixel mapping of different printing powers and angles for displaying or hiding complex information, providing opportunities for encryption, miniature robotics, photonics and phononics applications.
科研通智能强力驱动
Strongly Powered by AbleSci AI