In Situ Graft‑on Fibrous Composites and Nanostructure Interlocking Facilitate Highly Stable Wearable Sensors for SIDS Prevention  

作　　者：Kaifeng Chen Weitao Wang Zhihao Ye Yabo Dong Linpu Wan Zijian Zhang Cheng Lin Liwu Liu Jinsong Leng Xinyu Wang Wei Yang Shaoxing Qu Zongrong Wang 

机构地区：[1]State Key Laboratory of Silicon and Advanced Semiconductor Materials and School of Materials Science and Engineering,Zhejiang University,Hangzhou 310027,People’s Republic of China [2]Institute of Thermal Science and Technology,Shandong University,Jinan 250061,People’s Republic of China [3]School of Computer Science and Technology,Zhejiang University,Hangzhou 310027,People’s Republic of China [4]Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province and School of Aeronautics and Astronautics,Zhejiang University,Hangzhou 310027,People’s Republic of China [5]Department of Astronautical Science and Mechanics,Harbin Institute of Technology(HIT),Harbin 150001,People’s Republic of China [6]Center for Composite Materials and Structures,Harbin Institute of Technology(HIT),Harbin 150080,People’s Republic of China

出　　处：《Advanced Fiber Materials》2024年第3期825-840,共16页先进纤维材料（英文）

基　　金：support of following funding sources,including National Natural Science Foundation of China(No.12172106);Natural Science Foundation of Zhejiang Province(No.LZ23A020005);the Fundamental Research Funds for the Central Universities(Zhejiang University NGICS Platform);the specialized research projects of Huanjiang Laboratory.

摘　　要：High-performance and reliable wearable devices for healthcare are in high demand for the health monitoring of infants,ensuring that life-threatening events can be addressed promptly.Herein,the continuous monitoring of infant respiration for preventing sudden infant death syndrome(SIDS)is proposed using high-performance flexible piezoresistive sensors(FPS).The thorny challenges associated with FPS,including the signal drift and poor repeatability,are progressively improved via the employment of high-Tg matrix,the strengthening of in situ graft-on conducting polyaniline layer byβ-cyclodextrin(β-CD),and the nanostructure interlocking between the piezoresistive layer and electrodes.The sensor presents high linear sensitivity(30.7 kPa^(−1)),outstanding recoverability(low hysteresis up to 1.98%FS),static stability(4.00%signal drift after 24 h at 2.4 kPa)and dynamic stability(1.92%decay of signal intensity after 50,000 cycles).A wireless infant respiration monitoring system is developed.Respiration patterns and the real-time respiration rate are displayed on the phone.Notifications are implemented when abnormal status such as bradypnea and tachypnea is detected.

关 键 词：Wearable devices Flexible pressure sensor Respiration monitoring Inclusion complex In situ graft-on composite 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TB33[自动化与计算机技术—控制科学与工程]