Remotely Triggered Assembly of 3D Mesostructures Through Shape-Memory Effects

Jun Kyu Park, Kewang Nan, Haiwen Luan, Ning Zheng, Shiwei Zhao, Hang Zhang, Xu Cheng, Heling Wang, Kan Li, Tao Xie, Yonggang Huang, Yihui Zhang*, Seok Kim, John A. Rogers

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

42 Scopus citations


3D structures that incorporate high-performance electronic materials and allow for remote, on-demand 3D shape reconfiguration are of interest for applications that range from ingestible medical devices and microrobotics to tunable optoelectronics. Here, materials and design approaches are introduced for assembly of such systems via controlled mechanical buckling of 2D precursors built on shape-memory polymer (SMP) substrates. The temporary shape fixing and recovery of SMPs, governed by thermomechanical loading, provide deterministic control over the assembly and reconfiguration processes, including a range of mechanical manipulations facilitated by the elastic and highly stretchable properties of the materials. Experimental demonstrations include 3D mesostructures of various geometries and length scales, as well as 3D aquatic platforms that can change trajectories and release small objects on demand. The results create many opportunities for advanced, programmable 3D microsystem technologies.

Original languageEnglish (US)
Article number1905715
JournalAdvanced Materials
Issue number52
StatePublished - Dec 1 2019


  • 3D mesostructures
  • aquatic robots
  • remotely triggered 3D assembly
  • shape-memory polymers
  • stretchable devices

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • General Materials Science


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