Issue

Vol. 15 (2023)

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

https://doi.org/10.1007/s40820-023-01081-x
Hao Lei
Institute of Functional Nano and Soft Materials (FUNSOM), Joint International Research Laboratory of Carbon‑Based Functional Materials and Devices, Soochow University, Suzhou 215123, People’s Republic of China
Haifeng Ji
Institute of Functional Nano and Soft Materials (FUNSOM), Joint International Research Laboratory of Carbon‑Based Functional Materials and Devices, Soochow University, Suzhou 215123, People’s Republic of China
Xiaohan Liu
Jiangsu Key Laboratory for Carbon‑Based Functional Materials and Devices, Soochow University, Suzhou 215123, Jiangsu, People’s Republic of China
Bohan Lu
Department of Applied Mathematics, School of Mathematics and Physics, Xi’an Jiaotong-Liverpool University, Suzhou 215123, People’s Republic of China
Linjie Xie
Department of Electrical and Electronic Engineering, School of Advanced Technology, Xi’an Jiaotong-Liverpool University, Suzhou 215123, People’s Republic of China
Eng Gee Lim
Department of Electrical and Electronic Engineering, School of Advanced Technology, Xi’an Jiaotong-Liverpool University, Suzhou 215123, People’s Republic of China
Xin Tu
Department of Electrical and Electronic Engineering, University of Liverpool, Liverpool L693GJ, UK
Yina Liu
Department of Applied Mathematics, School of Mathematics and Physics, Xi’an Jiaotong-Liverpool University, Suzhou 215123, People’s Republic of China
Peixuan Zhang
Institute of Functional Nano and Soft Materials (FUNSOM), Joint International Research Laboratory of Carbon‑Based Functional Materials and Devices, Soochow University, Suzhou 215123, People’s Republic of China
Chun Zhao
Department of Electrical and Electronic Engineering, School of Advanced Technology, Xi’an Jiaotong-Liverpool University, Suzhou 215123, People’s Republic of China
Xuhui Sun
Institute of Functional Nano and Soft Materials (FUNSOM), Joint International Research Laboratory of Carbon‑Based Functional Materials and Devices, Soochow University, Suzhou 215123, People’s Republic of China
Zhen Wen
Institute of Functional Nano and Soft Materials (FUNSOM), Joint International Research Laboratory of Carbon‑Based Functional Materials and Devices, Soochow University, Suzhou 215123, People’s Republic of China

Corresponding Author: Zhen Wen

wenzhen2011@suda.edu.cn

Nano-Micro Letters, Vol. 15 (2023), Article Number: 109

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−1 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−1. 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.


Highlights:


1 The porous-reinforcement microstructure is constructed by the self-assembly of silicone rubber adhering to the porous framework of the PU sponge.
2 With the excellent performance both for tiny pressure and large mechanical stimuli, the flexible triboelectric patch can be used to monitor pulse wave and plantar pressure.
3 A remote healthcare system for real-time physiological signal monitoring is proposed.

Keywords

Pressure sensor Triboelectric nanogenerator Porous dielectric layer Physiological signals Internet of Healthcare
Lei, Hao, Haifeng Ji, Xiaohan Liu, Bohan Lu, Linjie Xie, Eng Gee Lim, Xin Tu, Yina Liu, Peixuan Zhang, Chun Zhao, Xuhui Sun, and Zhen Wen. 2023. “Self-Assembled Porous-Reinforcement Microstructure-Based Flexible Triboelectric Patch for Remote Healthcare”. Nano-Micro Letters 15 (April):109. https://doi.org/10.1007/s40820-023-01081-x.
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