Programming 3D curved mesosurfaces using microlattice designs

Xu Cheng, Zhichao Fan, Shenglian Yao, Tianqi Jin, Zengyao Lv, Yu Lan, Renheng Bo, Yitong Chen, Fan Zhang, Zhangming Shen, Huanhuan Wan, Yonggang Huang, Yihui Zhang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

48 Scopus citations

Abstract

Cellular microstructures form naturally in many living organisms (e.g., flowers and leaves) to provide vital functions in synthesis, transport of nutrients, and regulation of growth. Although heterogeneous cellular microstructures are believed to play pivotal roles in their three-dimensional (3D) shape formation, programming 3D curved mesosurfaces with cellular designs remains elusive in man-made systems. We report a rational microlattice design that allows transformation of 2D films into programmable 3D curved mesosurfaces through mechanically guided assembly. Analytical modeling and a machine learning–based computational approach serve as the basis for shape programming and determine the heterogeneous 2D microlattice patterns required for target 3D curved surfaces. About 30 geometries are presented, including both regular and biological mesosurfaces. Demonstrations include a conformable cardiac electronic device, a stingray-like dual mode actuator, and a 3D electronic cell scaffold.

Original languageEnglish (US)
Pages (from-to)1225-1232
Number of pages8
JournalScience
Volume379
Issue number6638
DOIs
StatePublished - Mar 24 2023

ASJC Scopus subject areas

  • General

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