Growing recyclable and healable piezoelectric composites in 3D printed bioinspired structure for protective wearable sensor

Qingqing He, Yushun Zeng, Laiming Jiang, Ziyu Wang (), Gengxi Lu, Haochen Kang, Pei Li, Brandon Bethers, Shengwei Feng, Lizhi Sun, Peter Sun, Chen Gong, Jie Jin, Yue Hou, Runjian Jiang, Wenwu Xu, Eugene Olevsky and Yang Yang ()
Additional contact information
Qingqing He: San Diego State University
Yushun Zeng: University of Southern California
Laiming Jiang: Sichuan University
Ziyu Wang: Wuhan University
Gengxi Lu: University of Southern California
Haochen Kang: University of Southern California
Pei Li: Wuhan University
Brandon Bethers: San Diego State University
Shengwei Feng: University of California, Irvine
Lizhi Sun: University of California, Irvine
Peter Sun: Grossmont College, 8800 Grossmont College Dr
Chen Gong: University of Southern California
Jie Jin: Canoo Technologies Inc
Yue Hou: Wuhan University
Runjian Jiang: San Diego State University
Wenwu Xu: San Diego State University
Eugene Olevsky: San Diego State University
Yang Yang: San Diego State University

Nature Communications, 2023, vol. 14, issue 1, 1-12

Abstract: Abstract Bionic multifunctional structural materials that are lightweight, strong, and perceptible have shown great promise in sports, medicine, and aerospace applications. However, smart monitoring devices with integrated mechanical protection and piezoelectric induction are limited. Herein, we report a strategy to grow the recyclable and healable piezoelectric Rochelle salt crystals in 3D-printed cuttlebone-inspired structures to form a new composite for reinforcement smart monitoring devices. In addition to its remarkable mechanical and piezoelectric performance, the growth mechanisms, the recyclability, the sensitivity, and repairability of the 3D-printed Rochelle salt cuttlebone composite were studied. Furthermore, the versatility of composite has been explored and applied as smart sensor armor for football players and fall alarm knee pads, focusing on incorporated mechanical reinforcement and electrical self-sensing capabilities with data collection of the magnitude and distribution of impact forces, which offers new ideas for the design of next-generation smart monitoring electronics in sports, military, aerospace, and biomedical engineering.

Date: 2023
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DOI: 10.1038/s41467-023-41740-6

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