Active Surface with Dynamic Microstructures and Hierarchical Gradient Enabled by in situ Pneumatic Control.

ABSTRACT: An active surface with an on-demand tunable topography holds great potential for various applications, such as reconfigurable metasurfaces, adaptive microlenses, soft robots and four-dimensional (4D) printing. Despite extensive progress, to achieve refined control of microscale surface structures with large-amplitude deformation remains a challenge. Moreover, driven by the demand of constructing a large area of microstructures with increased complexity-for instance, biomimetic functional textures bearing a three-dimensional (3D) gradient-novel strategies are highly desired. Here, we develop an active surface with a dynamic topography and three-tier height gradient via a strain-tunable mismatching-bonding process. Pneumatic actuation allows for rapid, reversible and uniform regulation of su

SUBMITTER: Wang JN 

PROVIDER: S-EPMC7694221 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature