CUED Publications database

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

Park, JK and Nan, K and Luan, H and Zheng, N and Zhao, S and Zhang, H and Cheng, X and Wang, H and Li, K and Xie, T and Huang, Y and Zhang, Y and Kim, S and Rogers, JA (2019) Remotely Triggered Assembly of 3D Mesostructures Through Shape-Memory Effects. Advanced Materials, 31. e1905715-. ISSN 0935-9648

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Abstract

© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim 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.

Item Type: Article
Uncontrolled Keywords: 3D mesostructures aquatic robots remotely triggered 3D assembly shape-memory polymers stretchable devices
Subjects: UNSPECIFIED
Divisions: Div C > Materials Engineering
Depositing User: Cron Job
Date Deposited: 22 Nov 2019 21:06
Last Modified: 24 Nov 2020 12:37
DOI: 10.1002/adma.201905715