Thayer School of Engineering
Motile plant structures such as Mimosa pudica leaves, Impatiens glandulifera seedpods, and Dionaea muscipula leaves exhibit fast nastic movements in a few seconds or less. This motion is stimuli-independent mechanical movement following theorema egregium rules. Artificial analogs of tropistic motion in plants are exemplified by shape-morphing systems, which are characterized by high functional robustness and resilience for creating 3D structures. However, all shape-morphing systems developed so far rely exclusively on continuous external stimuli and result in slow response. Here, we report a Gaussian-preserved shape-morphing system to realize ultrafast shape morphing and non-volatile reconfiguration. Relying on the Gaussian-preserved rules, the transformation can be triggered by mechanical or thermal stimuli within a microsecond. Moreover, as localized energy minima are encountered during shape morphing, non-volatile configuration is preserved by geometrically enhanced rigidity. Using this system, we demonstrate a suite of electronic devices that are reconfigurable, and therefore, expand functional diversification.
Tian, Z., Xu, B., Wan, G. et al. Gaussian-preserved, non-volatile shape morphing in three-dimensional microstructures for dual-functional electronic devices. Nat Commun 12, 509 (2021). https://doi.org/10.1038/s41467-020-20843-4
Dartmouth Digital Commons Citation
Tian, Ziao; Xu, Borui; Wan, Guangchao; Han, Xiaomin; Di, Zengfeng; Chen, Zi; and Mei, Yongfeng, "Gaussian-preserved, non-volatile shape morphing in three-dimensional microstructures for dual-functional electronic devices" (2021). Dartmouth Scholarship. 4191.