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<p>Flexible wearable piezoresistive strain sensors have shown vast potential for applications in motion detection, healthcare, and e-skin due to their portable nature, and a variety of nanostructured materials have also been attempted to be used in the construction of sensor builds. Graphene materials, with their excellent electrical and mechanical properties and easy grafting and modification, are ideal materials for strain sensing functions. In this paper, the working mechanism and main performance parameters of flexible piezoresistive strain sensors are introduced. The design strategies, fabrication methods, and performance parameters of the three main graphene-based strain sensors, namely, one-dimensional fiber structure, two-dimensional film/network structure, and three-dimensional interconnect structure, are discussed. Examples are given to illustrate their applications of motion detection, health monitoring, e-skin and human–machine interaction, and finally the future development direction and possible challenges of graphene-based flexible piezoresistive strain sensors are discussed.</p>

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Advances in graphene-based flexible wearable piezoresistive strain sensors

  • 期刊论文

  • 发表日期：

    2025年7月11日

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  • Yangyang Liu,
  • Min Yi,
  • Tao Chen,
  • Xianglin Mu,
  • Qisong Sun,
  • Jie Zhou

摘要

Flexible wearable piezoresistive strain sensors have shown vast potential for applications in motion detection, healthcare, and e-skin due to their portable nature, and a variety of nanostructured materials have also been attempted to be used in the construction of sensor builds. Graphene materials, with their excellent electrical and mechanical properties and easy grafting and modification, are ideal materials for strain sensing functions. In this paper, the working mechanism and main performance parameters of flexible piezoresistive strain sensors are introduced. The design strategies, fabrication methods, and performance parameters of the three main graphene-based strain sensors, namely, one-dimensional fiber structure, two-dimensional film/network structure, and three-dimensional interconnect structure, are discussed. Examples are given to illustrate their applications of motion detection, health monitoring, e-skin and human–machine interaction, and finally the future development direction and possible challenges of graphene-based flexible piezoresistive strain sensors are discussed.