Nature provides a vast array of solid materials that repeatedly and reversibly transform in shape in response to environmental variations. This property is essential for new energy technologies, thermal management, load-bearing elements, and biomedical implants. In this presentation, similar shape morphing mechanism layer-by-layer (LBL) constructed composites will be described. The out-of-plane deflection was achieved by differential swelling as well as by the presicion folding (orogami) and cuts (kirigami). The behavior of teh structures can be precisely controlled and predicted by theoretical analysis. We also demonstrate controlled and stimuli-responsive twisting motion and record extensibility in the nanocomposites. These materials design methods offer new paradigm in the design and fabrication of stimuli-responsive shape-morphing nano- and microscale structures for a variety of applications.

Origami and kirigami nanocomposites

249th National Meeting (2015)

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