ZnO nanorod/multi-walled carbon nanotube nanocomposite for ethanol vapour detection

Micro & nano letters

article

Feifei Cao¹  Cuiping Li¹  Mingji Li¹  Hongji Li²  Baohe Yang¹ 

[1] Tianjin Key Laboratory of Film Electronic and Communicate Devices, School of Electrical and Electronic Engineering, Tianjin University of Technology;Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry and Chemical Engineering, Tianjin University of Technology

关键词: ceramics;    gas sensors;    II-VI semiconductors;    nanocomposites;    wide band gap semiconductors;    thin film sensors;    nanofabrication;    nanorods;    alumina;    semiconductor growth;    zinc compounds;    nanosensors;    carbon nanotubes;    ZnO nanorod/multiwalled carbon nanotube nanocomposite;    ethanol vapour detection;    ethanol gas sensing properties;    ZnONR/MWCNT nanocomposite gas sensor;    zinc oxide nanorods;    hydrothermal method;    temperature 370.0 degC;    time 2.0 s;    time 16.0 s;    ZnO-C;   

DOI  :  10.1049/mnl.2017.0775

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

Indication of oxygen therapy in fibrotic interstitial lung diseases is not standardized and its specific requirements are not well defined. The objective of this study was to evaluate ambulatory oxygen therapy features in lung fibrotic patients. Clinical and exploratory　data, including 6-minute walking test and pulmonary hypertension, from one hundred and seven patients with fibrotic interstitial lung disease that received ambulatory oxygen treatment were studied. In up to 40% of cases the prescription of oxygen therapy was made after performing a 6-minute walking test . Patients who required ambulatory oxygen only during exercise presented a mild to moderate reduction of the predicted % FVC (62.1 ± 19) and DLCO (49 ± 14.4) while patients who had respiratory failure at rest (mean PaO2 51.9 ± 6.7) presented a moderate reduction of %FVC (56.8 ± 15.6) but a severe decrease of %DLCO (31.67 ± 12). Pulmonary hypertension (PH) was evaluated in 47.7% of patients and occurred in 60.8% of them. In conclusion, there is no pulmonary functional predictor of oxyhaemoglobin desaturation during exercise. PH is frequently associated with interstitial lung diseases, mainly when respiratory failure at rest appears. The heterogeneity of the patients and limitation of retrospective studies could be the cause of the tributes for potential benefits of oxygen treatment in interstitial lung diseases.

【 授权许可】

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