JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) ›› 2025, Vol. 60 ›› Issue (10): 79-104.doi: 10.6040/j.issn.1671-9352.0.2025.087

Previous Articles    

Self-powered hydrogel sensors and their applications

ZHOU Song1, NING Hualong2, CHEN Xiangyan2, FENG Yujiao2, XU Wenlong2*   

  1. 1. Basic Teaching Department, Yantai Vocational College, Yantai 264670, Shandong, China;
    2. School of Chemistry and Materials Science, Ludong University, Yantai 264025, Shandong, China
  • Published:2025-10-17

Abstract: Self-powered hydrogel sensors integrate hydrogel material properties with energy capture technology, solving the bottlenecks of traditional sensors, such as poor comfort and biocompatibility, as well as bulky size and lack of range due to reliance on external power sources. With its high water content, tunable mechanical properties, self-adhesion and conductivity, the hydrogel seamlessly adheres to heterogeneous surfaces and captures sensing signals with sensitivity and precision. The self-powered mechanism can convert mechanical deformation, thermal, optical or biochemical energy into electrical energy, realizing energy supply and lightweight design of the device. Therefore, self-powered hydrogel sensors, which combine comfort, sensitivity and energy self-sufficiency, have significant potential applications in the fields of health monitoring, dynamic interaction and environment sensing. In this paper, we systematically summarize the classification, properties, and self-powered mechanism of polymer hydrogel materials, and introduce the application frontiers of self-powered hydrogel sensors, which will provide references for future device design and cross-field applications.

Key words: hydrogel, self-power, sensors, healthcare, dynamic interaction, environmental monitoring

CLC Number: 

  • O648
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