A Mobile E‐Nose Prototype for Online Breath Analysis

• DOI: 10.1002/adsr.202300018
• Publication Date: 2023-04-14T14:10:20Z
• Authors: Qiaofen Chen; Xufeng Guo; Yuyue Jiang; Xuemei Liu; Shiyuan Xu; Xuqing Huang; Yueling Chen; Xiaogang Ye; Aiwu Pan; Yalin Dong; Zhengfu He; Jianmin Wu
• Keywords: Breath gas analysis; Electronic Nose; Exhalation

Abstract Exhaled breath provides information of individual's holistic physiological condition, making non‐invasive exhaled testing a convenient and effective choice for personalized health management. This work proposes mobile e‐nose prototype equipped with miniaturized gas delivering unit, an advanced sensor array, customized analog to digital conversion circuit board, online data transmission, machine learning algorithms that can effectively detect analyze volatile compounds in breath, providing systematic design strategy disease diagnosis. The as core element, is composed eight graphene‐based chemiresistive materials which are sensitive trace analytes. In test study 401 cases, patients respiratory diseases be distinguished from the healthy overall accuracy higher than 80%. addition, classification samples between chronic obstructive pulmonary 85% achieved. These results indicate proposed portable holds great promise state monitoring.