A Self-Powered Breath Analyzer Based on PANI/PVDF Piezo-Gas-Sensing Arrays for Potential Diagnostics Application

被引：97
作者：
Fu, Yongming [1 ,2 ]
He, Haoxuan [3 ]
Zhao, Tianming [3 ]
Dai, Yitong [3 ]
Han, Wuxiao [3 ]
Ma, Jie [2 ]
Xing, Lili [1 ,3 ]
Zhang, Yan [1 ]
Xue, Xinyu [1 ,3 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Phys, Chengdu 610054, Sichuan, Peoples R China
[2] Shanxi Univ, Coll Phys & Elect Engn, Taiyuan 030006, Shanxi, Peoples R China
[3] Northeastern Univ, Coll Sci, Shenyang 110004, Liaoning, Peoples R China
来源：
NANO-MICRO LETTERS | 2018年 / 10卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Polyaniline; Polyvinylidene fluoride; Piezoelectric; Sensor array; Diagnostics; Breath analyzer; EXHALED NITRIC-OXIDE; POLYANILINE NANOFIBERS; CONDUCTING POLYMERS; ENERGY-CONVERSION; IN-SITU; SENSOR; NANOGENERATOR; COMPOSITES; HUMIDITY; DISEASE;
D O I：
10.1007/s40820-018-0228-y
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The increasing morbidity of internal diseases poses serious threats to human health and quality of life. Exhaled breath analysis is a noninvasive and convenient diagnostic method to improve the cure rate of patients. In this study, a self-powered breath analyzer based on polyaniline/polyvinylidene fluoride (PANI/PVDF) piezo-gas-sensing arrays has been developed for potential detection of several internal diseases. The device works by converting exhaled breath energy into piezoelectric gas-sensing signals without any external power sources. The five sensing units in the device have different sensitivities to various gas markers with concentrations ranging from 0 to 600ppm. The working principle can be attributed to the coupling of the in-pipe gas-flow-induced piezoelectric effect of PVDF and gas-sensing properties of PANI electrodes. In addition, the device demonstrates its use as an ethanol analyzer to roughly mimic fatty liver diagnosis. This new approach can be applied to fabricating new exhaled breath analyzers and promoting the development of self-powered systems.
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页数：12
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