Highly Deformable and Transparent Triboelectric Physiological Sensor Based on Anti-Freezing and Antidrying Ionic Conductive Hydrogel

Chen, Zhensheng; Yu, Jiahao; Xu, Mengfei; Zeng, Haozhe; Tao, Kai; Wu, Zixuan; Wu, Jin; Miao, Jianmin; Chang, Honglong; Yuan, Weizheng

doi:10.1109/mems51782.2021.9375194

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Cited by 5 publications

(1 citation statement)

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“…Chen et al changed the hydrogel's surface with tiny pyramidal structures to increase the sensitivity of the TENG. 49 Similar to this, Qian et al created a polyampholyte (PA) hydrogel with a honeycomb-like microstructure. The hydrogel could attach to a glass wall of a water system when used as a substrate in a TENG, and the TENG was able to capture wave energy from that location.…”

Section: Hydrogelsmentioning

confidence: 96%

Self-powered ionic tactile sensors

et al. 2023

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Section: Hydrogelsmentioning

confidence: 96%

Self-powered ionic tactile sensors

et al. 2023

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show abstract

Hydrogel-based triboelectric devices for energy-harvesting and wearable sensing applications

et al. 2022

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A button switch inspired duplex hydrogel sensor based on both triboelectric and piezoresistive effects for detecting dynamic and static pressure

Chen

Zhang

et al. 2022

Nanotechnology and Precision Engineering

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The capability to sense complex pressure variations comprehensively is vital for wearable electronics and flexible human–machine interfaces. In this paper, inspired by button switches, a duplex tactile sensor based on the combination of triboelectric and piezoresistive effects is designed and fabricated. Because of its excellent mechanical strength and electrical stability, a double-networked ionic hydrogel is used as both the conductive electrode and elastic current regulator. In addition, micro-pyramidal patterned polydimethylsiloxane (PDMS) acts as both the friction layer and the encapsulation elastomer, thereby boosting the triboelectric output performance significantly. The duplex hydrogel sensor demonstrates comprehensive sensing ability in detecting the whole stimulation process including the dynamic and static pressures. The dynamic stress intensity (10–300 Pa), the action time, and the static variations (increase and decrease) of the pressure can be identified precisely from the dual-channel signals. Combined with a signal processing module, an intelligent visible door lamp is achieved for monitoring the entire “contact–hold–release–separation” state of the external stimulation, which shows great application potential for future smart robot e-skin and flexible electronics.

show abstract

Highly Deformable and Transparent Triboelectric Physiological Sensor Based on Anti-Freezing and Antidrying Ionic Conductive Hydrogel

Cited by 5 publications

References 11 publications

Self-powered ionic tactile sensors

Self-powered ionic tactile sensors

Hydrogel-based triboelectric devices for energy-harvesting and wearable sensing applications

A button switch inspired duplex hydrogel sensor based on both triboelectric and piezoresistive effects for detecting dynamic and static pressure

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