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Robust and Multifunctional Kirigami Electronics with a Tough and Permeable Aramid Nanofiber Framework
Hongzhen Liu1, Hegeng Li1, Zuochen Wang1,2
1Department of Mechanical Engineering, The University of Hong Kong, Hong Kong SAR, 999077, P. R. China.
Advanced Materials (Deerfield Beach, Fla.)
|October 12, 2022
Summary
Researchers developed a new composite nanofiber framework (CNFF) for robust, stretchable kirigami electronics. This advanced material enables multifunctional wearable devices for seamless skin-interface applications.
Area of Science:
- Materials Science
- Wearable Electronics
- Biomedical Engineering
Background:
- Kirigami designs offer high stretchability for wearable electronics on skin.
- Limited material technologies hinder robust kirigami skin-interface devices.
Purpose of the Study:
- To engineer wearable kirigami electronics using a novel composite nanofiber framework (CNFF).
- To demonstrate the potential of CNFF for advanced skin-interfaced devices.
Main Methods:
- Fabrication of a CNFF using aramid nanofibers and poly(vinyl alcohol).
- Multiscale simulations to analyze fracture resistance of CNFF kirigami structures.
- Integration of microelectronic sensors and electroactive polymers onto the CNFF platform.
Main Results:
- The CNFF exhibits high toughness, permeability, and manufacturability.
- CNFF-based kirigami structures demonstrated high fracture resistance.
- Successfully integrated sensors for electrocardiogram (ECG), electromyogram (EMG), and skin-temperature measurements.
Conclusions:
- CNFF provides a versatile platform for robust, multifunctional wearable kirigami electronics.
- The developed devices are mechanically robust, lightweight, and biocompatible.
- This work offers insights for advanced wearable systems and human-machine interfaces.
