Self-Assembled Porous-Reinforcement Microstructure-Based Flexible Triboelectric Patch for Remote Healthcare.



Lei, Hao, Ji, Haifeng, Liu, Xiaohan, Lu, Bohan, Xie, Linjie, Lim, Eng Gee, Tu, Xin ORCID: 0000-0002-6376-0897, Liu, Yina, Zhang, Peixuan, Zhao, Chun
et al (show 2 more authors) (2023) Self-Assembled Porous-Reinforcement Microstructure-Based Flexible Triboelectric Patch for Remote Healthcare. Nano-micro letters, 15 (1). p. 109.

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Abstract

Realizing real-time monitoring of physiological signals is vital for preventing and treating chronic diseases in elderly individuals. However, wearable sensors with low power consumption and high sensitivity to both weak physiological signals and large mechanical stimuli remain challenges. Here, a flexible triboelectric patch (FTEP) based on porous-reinforcement microstructures for remote health monitoring has been reported. The porous-reinforcement microstructure is constructed by the self-assembly of silicone rubber adhering to the porous framework of the PU sponge. The mechanical properties of the FTEP can be regulated by the concentrations of silicone rubber dilution. For pressure sensing, its sensitivity can be effectively improved fivefold compared to the device with a solid dielectric layer, reaching 5.93 kPa<sup>-1</sup> under a pressure range of 0-5 kPa. In addition, the FTEP has a wide detection range up to 50 kPa with a sensitivity of 0.21 kPa<sup>-1</sup>. The porous microstructure makes the FTEP ultra-sensitive to external pressure, and the reinforcements endow the device with a greater deformation limit in a wide detection range. Finally, a novel concept of the wearable Internet of Healthcare (IoH) system for real-time physiological signal monitoring has been proposed, which could provide real-time physiological information for ambulatory personalized healthcare monitoring.

Item Type: Article
Uncontrolled Keywords: Pressure sensor, Triboelectric nanogenerator, Porous dielectric layer, Physiological signals, Internet of Healthcare
Divisions: Faculty of Science and Engineering > School of Electrical Engineering, Electronics and Computer Science
Depositing User: Symplectic Admin
Date Deposited: 28 Apr 2023 08:28
Last Modified: 07 May 2023 18:49
DOI: 10.1007/s40820-023-01081-x
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3170030