Understanding the Potential of WO₃ Based Sensors for Breath Analysis.

Understanding the Potential of WO₃ Based Sensors for Breath Analysis.
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DOI:
10.3390/s16111815
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发表时间:
2016-10-29
期刊:
Sensors (Basel, Switzerland)
影响因子:
--
通讯作者:
Barsan N
Barsan N
中科院分区:
其他
文献类型:
--
作者:
Staerz A;Weimar U;Barsan N

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三氧化钨是气体传感器中第二常用的半导体金属氧化物。基于半导体金属氧化物(SMOX)的传感器体积小、坚固耐用、价格低廉、灵敏度高,对于手持式便携式医疗诊断探测器来说非常有吸引力。据报道,WO3对呼吸中发现的几种生物标志物(如丙酮、氨、一氧化碳、硫化氢、甲苯和一氧化氮)表现出高的传感器响应。现代材料科学允许WO3样品定制,以满足某些传感需求。利用呼吸采样的最新进展,未来将有可能在应用条件下测试基于wo3的传感器,并将传感结果与使用更昂贵的分析方法获得的结果进行比较。
Tungsten trioxide is the second most commonly used semiconducting metal oxide in gas sensors. Semiconducting metal oxide (SMOX)-based sensors are small, robust, inexpensive and sensitive, making them highly attractive for handheld portable medical diagnostic detectors. WO3 is reported to show high sensor responses to several biomarkers found in breath, e.g., acetone, ammonia, carbon monoxide, hydrogen sulfide, toluene, and nitric oxide. Modern material science allows WO3 samples to be tailored to address certain sensing needs. Utilizing recent advances in breath sampling it will be possible in the future to test WO3-based sensors in application conditions and to compare the sensing results to those obtained using more expensive analytical methods.
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