Coaxially printed magnetic mechanical electrical hybrid structures with actuation and sensing functionalities

Yuanxi Zhang, Chengfeng Pan, Pengfei Liu, Lelun Peng, Zhouming Liu, Yuanyuan Li, Qingyuan Wang, Tong Wu, Zhe Li (), Carmel Majidi () and Lelun Jiang ()
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Yuanxi Zhang: Shenzhen Campus of Sun Yat-sen University
Chengfeng Pan: Zhejiang University
Pengfei Liu: Shenzhen Campus of Sun Yat-sen University
Lelun Peng: Shenzhen Campus of Sun Yat-sen University
Zhouming Liu: Shenzhen Campus of Sun Yat-sen University
Yuanyuan Li: Shenzhen Campus of Sun Yat-sen University
Qingyuan Wang: Shenzhen Campus of Sun Yat-sen University
Tong Wu: Shenzhen Campus of Sun Yat-sen University
Zhe Li: Shenzhen Campus of Sun Yat-sen University
Carmel Majidi: Carnegie Mellon University
Lelun Jiang: Shenzhen Campus of Sun Yat-sen University

Nature Communications, 2023, vol. 14, issue 1, 1-15

Abstract: Abstract Soft electromagnetic devices have great potential in soft robotics and biomedical applications. However, existing soft-magneto-electrical devices would have limited hybrid functions and suffer from damaging stress concentrations, delamination or material leakage. Here, we report a hybrid magnetic-mechanical-electrical (MME) core-sheath fiber to overcome these challenges. Assisted by the coaxial printing method, the MME fiber can be printed into complex 2D/3D MME structures with integrated magnetoactive and conductive properties, further enabling hybrid functions including programmable magnetization, somatosensory, and magnetic actuation along with simultaneous wireless energy transfer. To demonstrate the great potential of MME devices, precise and minimally invasive electro-ablation was performed with a flexible MME catheter with magnetic control, hybrid actuation-sensing was performed by a durable somatosensory MME gripper, and hybrid wireless energy transmission and magnetic actuation were demonstrated by an untethered soft MME robot. Our work thus provides a material design strategy for soft electromagnetic devices with unexplored hybrid functions.

Date: 2023
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DOI: 10.1038/s41467-023-40109-z

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