Wearable Soft Electronics Lab, Department of Mechanical Engineering, Seoul National University, 1, Gwanak‑ro, Gwanak‑gu, Seoul 08826, Republic of Korea
Received: January 20, 2026; Accepted: February 10, 2026. Published online: March 4, 2026.
ABSTRACT
Electrospun nanofiber-based strain sensors have attracted significant attention as key components of next-generation wearable electronics due to their high sensitivity, mechanical compliance, and excellent breathability. The unique fibrous network structures produced by electrospinning offer large specific surface areas and tunable architectures, enabling efficient transduction of mechanical deformation into electrical signals. This review provides a comprehensive overview of electrospun nanofiber-based strain sensors, covering fabrication principles, sensing mechanisms, and representative applications. The working mechanisms, including contact resistance variation, tunneling effects, and crack modulation are systematically discussed. Particular emphasis is placed on applications in human motion monitoring, healthcare, and advanced human–machine interfaces such as soft robotics and gesture recognition. Current challenges and future research directions toward scalable manufacturing and intelligent wearable systems are also highlighted.
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