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This study addresses the urgent demand for high-performance conductive materials in flexible wearable devices by designing a dual-network structure PAAm/SA/LiCl hydrogel. This material exhibits excellent mechanical properties (200% elongation at break), anti-freezing (− 35.4 °C) and high conductivity (117.6 S/cm). A triboelectric nanogenerator (TENG) assembled from 3D-printed micro-conical hydrogel structures generates an open-circuit voltage of up to 112.4 V and illuminates 35 LED lights. The devices demonstrate a sensitive response to human movements such as finger and knee flexion, which is promising for applications in self-powered sensors and flexible wearable devices.

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3D Printed Microstructure Hydrogel for Wearable Sensors and Triboelectric Nanogenerator

  • 会议论文

  • 发表日期：

    2026年

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  • Tuanjie Chen,
  • Hongxue Xu,
  • Caijuan Li

摘要

This study addresses the urgent demand for high-performance conductive materials in flexible wearable devices by designing a dual-network structure PAAm/SA/LiCl hydrogel. This material exhibits excellent mechanical properties (200% elongation at break), anti-freezing (− 35.4 °C) and high conductivity (117.6 S/cm). A triboelectric nanogenerator (TENG) assembled from 3D-printed micro-conical hydrogel structures generates an open-circuit voltage of up to 112.4 V and illuminates 35 LED lights. The devices demonstrate a sensitive response to human movements such as finger and knee flexion, which is promising for applications in self-powered sensors and flexible wearable devices.