Fully paper-integrated hydrophobic and air permeable piezoresistive sensors for high-humidity and underwater wearable motion monitoring

被引：42

作者：

Wei, Yuewen ^{[1
,2
]}

Shi, Xuewen ^{[1
,2
]}

Yao, Zhuoqi ^{[1
,2
]}

Zhi, Jiacai ^{[1
,2
]}

Hu, Lixuan ^{[1
,2
]}

Yan, Ren ^{[1
,2
]}

Shi, Chuanqian ^{[3
]}

Yu, Hai-Dong ^{[1
,2
]}

Huang, Wei ^{[1
,2
]}

机构：

[1] Northwestern Polytech Univ, Xian Inst Flexible Elect IFE, Frontiers Sci Ctr Flexible Elect, 127 West Youyi Rd, Xian 710072, Peoples R China

[2] Northwestern Polytech Univ, Xian Inst Biomed Mat & Engn, 127 West Youyi Rd, Xian 710072, Peoples R China

[3] Ningbo Univ, Key Lab Impact & Safety Engn, Minist Educ, Ningbo 315201, Peoples R China

来源：

NPJ FLEXIBLE ELECTRONICS | 2023年 / 7卷 / 01期

关键词：

PRESSURE SENSOR; LOW-COST;

D O I：

10.1038/s41528-023-00244-5

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Paper-based electronics have attracted much attention due to their softness, degradability, and low cost. However, paper-based sensors are difficult to apply to high-humidity environments or even underwater. Here, we report a fully paper-integrated piezoresistive sensing system that exhibits flexibility, waterproofing, air permeability, and biocompatibility. This system consists of hydrophobic paper as the substrate and encapsulation layer, conductive paper with a double 'zig-zag' and dotted surface structure as the sensing layer, and silver paste films as the interconnects. The structural design of the sensing layer helps to increase the contact area in adjacent layers under pressure and further improves the pressure sensitivity. The piezoresistive system can be worn on human skin in the ambient environment, wet environment, and water for real-time monitoring of physiological signals with air permeability and waterproofing due to its hydrophobic fiber structure. Such a device provides a reliable, economical, and eco-friendly solution to wearable technologies.

引用

页数：9