Remotely Triggered Assembly of 3D Mesostructures Through Shape‐Memory Effects
Abstract
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.
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The paper achieved a 4D printable shape memory hydrogel that operates via spinodal decomposition, with shape-shifting dominated by internal mass diffusion instead of thermal conduction.
“Here, we achieve this seemingly unrealistic goal with a 4D printable shape memory hydrogel that operates via spinodal decomposition, with its shape-shifting dominated by internal mass diffusion instead of thermal conduction for common shape memory polymers8-10,13.”
From Shape memory polymer with programmable recovery onset (2023) · cites this paper as [10]
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References 56 · Cited by 68
- Authors
- Park, J. K., Nan, K., Luan, H., Zheng, N., Zhao, S., Zhang, H., Cheng, X., Wang, H., Li, K., Xie, T., Huang, Y., Zhang, Y., Kim, S., & Rogers, J. A.
- Affiliations
- University of Illinois Urbana-Champaign (US)
- Harvard University (US)
- Northwestern University (US)
- State Key Laboratory of Chemical Engineering (CN)
- Tsinghua University (CN)
- Corresponding author
- Zhang, Yihui
- Kim, Seok
- Rogers, John A.
- ORCID
- Venue
- Advanced Materials
- Publisher
- Wiley
- Published
- 2019-11-13
- Volume
- 31
- Issue
- 52
- Pages
- e1905715-e1905715
- ISSN
- 0935-9648 (ISSN-L)
- 1521-4095
- OpenAlex
- W2989390964
- Cited by
- 68
- References
- 56
- Citations by year
- 2026: 8 · 2025: 5 · 2024: 14 · 2023: 8 · 2022: 12 · 2021: 15 · 2020: 6
- FWCI
- 4.64
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- Locations
- Advanced Materials (publishedVersion)
- PubMed (publishedVersion)
- Cambridge University Engineering Department Publications Database (submittedVersion)
- Funders
- Army Research Office
- National Natural Science Foundation of China (11672152, 11722217)
- Tsinghua National Laboratory for Information Science and Technology
- National Science Foundation (CMMI1400169, CMMI1534120, CMMI1635443)
- Multidisciplinary University Research Initiative
- Topics
- Physical Sciences › Engineering › Mechanical Engineering › Advanced Materials and Mechanics
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer composites and self-healing
- Physical Sciences › Engineering › Mechanical Engineering › Modular Robots and Swarm Intelligence
- Keywords
- shape memory polymers, buckling, thermomechanical loading, stretchable electronics, microrobots, on-demand release
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