面向人体气味检测的柔性传感器阵列研究
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摘要
提出了一种用于检测人体气味的可穿戴式柔性传感器阵列。采集志愿者的人体气味并通过气相质谱-色谱分析得到传感器测试的目标气体;使用碳纳米管(CNT)/有机物复合敏感材料制备传感器阵列,将传感器阵列置于静态测试装置中进行单一气体测试和混合气体测试;提取传感器阵列相对响应,采用主元分析法(PCA)进行降维聚类。实验结果表明:所制备的传感器在静态测试中识别准确率为100%,可以识别不同的混合气体,具有识别不同人体的潜力。
A wearable flexible sensor array is proposed to identify body odors. The volunteers ' body odor are collected and the target gas for sensor testing is obtained by GC-MS. A sensor array is fabricated by using carbon nanotube( CNT)/organic composite sensitive material. The sensor array is placed in a static test device for single gas test and mixed gas test. Contrast response of sensor array is extracted by using principal component analysis( PCA) to reduce dimensionality and clustering. The experimental results show that the prepared sensor has 100 %recognition accuracy in static test,which can identify different mixed gas environment and has the potential to be used in human test to identify different human body.
A wearable flexible sensor array is proposed to identify body odors. The volunteers ' body odor are collected and the target gas for sensor testing is obtained by GC-MS. A sensor array is fabricated by using carbon nanotube( CNT)/organic composite sensitive material. The sensor array is placed in a static test device for single gas test and mixed gas test. Contrast response of sensor array is extracted by using principal component analysis( PCA) to reduce dimensionality and clustering. The experimental results show that the prepared sensor has 100 %recognition accuracy in static test,which can identify different mixed gas environment and has the potential to be used in human test to identify different human body.
引文
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[2]Pause B M.Differentiation of body odors by the human brain[J].International Journal of Psychophysiology,1998,30(1-2):35-36.
[3]Pandey S K,Kim K H.Human body-odor components and their determination[J].Tr AC Trends in Analytical Chemistry,2011,30(5):784-796.
[4]Lorwongtragool P,Sowade E,Watthanawisuth N,et al.A novel wearable electronic nose for healthcare based on flexible printed chemical sensor array[J].Sensors,2014,14(10):19700-19712.
[5]Peled N,Barash O,Tisch U,et al.Volatile fingerprints of cancer specific genetic mutations[J].Nanomedicine,2013,9(6):858-866.
[6]Lorwongtragool P,Sowade E,Watthanawisuth N,et al.A novel wearable electronic nose for healthcare based on flexible printed chemical sensor array[J].Sensors,2014,14(10):19700-19712.
[7]Jadoon S,Karim S,Akram M R,et al.Recent developments in sweat analysis and its applications[J].International Journal of Analytical Chemistry,2015,2015:1-7.
[8]Gallagher M,Wysocki C J,Leyden J J,et al.Analysis of volatile organic compounds from human skin[J].British Journal of Dermatology,2008,159(4):780-791.
[9]张敏,田逢春,戴才莉.医用电子鼻传感器系统的发展[J].传感器与微系统,2006,25(4):1-4.
[10]Tran V H,Chan H P,Thurston M,et al.Breath analysis of lung cancer patients using an electronic nose detection system[J].IEEE Sens,2010,10:1514-1518.
[11]Natale C D,Mantini A,Macagnano A,et al.A electronic nose analysis of urine samples containing blood[J].Physiol Meas,1999,20:377-384.
[12]马宏伟,陈小通,祁昌禹,等气体传感器静态测试系统电路设计[J].甘肃科学学报,2010,22(4):124-128.
[13]崔迎.人体气味的组成及分析方法研究[D].南京:南京理工大学,2004:12-13.
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