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Oxygen Sensing Based on the Yellowing of Newspaper
ACS Sensors ( IF 8.2 ) Pub Date : 2018-01-11 00:00:00 , DOI: 10.1021/acssensors.7b00790 Jingjing Yu 1 , Xingcai Qin 1 , Xiaojun Xian 2 , Nongjian Tao 1, 2
ACS Sensors ( IF 8.2 ) Pub Date : 2018-01-11 00:00:00 , DOI: 10.1021/acssensors.7b00790 Jingjing Yu 1 , Xingcai Qin 1 , Xiaojun Xian 2 , Nongjian Tao 1, 2
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Newspaper is known to turn yellow over time. We show here that this yellowing process is sensitive to oxygen when exposed to UV light, leading to oxygen sensing. Oxygen sensing is critical to many applications, including industrial process control and breath analysis, but the existing oxygen sensors have limitations, especially for breath analysis that operates at 100% humidity. The UV irradiation also triggers fluorescence emission from newspaper, and the fluorescence intensity depends on oxygen concentration, providing an additional oxygen sensing method. Newspaper is stable in ambient air, and reactive to oxygen only with UV activation, which overcomes the instability issue of a typical colorimetric sensor in ambient air. The newspaper oxygen sensor works in 100% relative humidity air, containing various interferents. These unique properties of newspaper promise low cost and reliable oxygen sensing applications.
中文翻译：
基于报纸变黄的氧气感测
众所周知，报纸会随着时间的流逝而变黄。我们在这里表明，这种黄化过程在暴露于紫外线下时对氧气很敏感，从而导致了氧气的感应。氧气感应对许多应用至关重要，包括工业过程控制和呼吸分析，但是现有的氧气传感器有局限性，尤其是对于在100％湿度下运行的呼吸分析。紫外线照射还会触发报纸的荧光发射，并且荧光强度取决于氧气浓度，从而提供了一种附加的氧气感应方法。报纸在环境空气中稳定，并且仅在紫外线激活下对氧气具有反应性，从而克服了典型的比色传感器在环境空气中的不稳定性问题。报纸氧气传感器在100％相对湿度的空气中工作，其中包含各种干扰物。
更新日期：2018-01-11
中文翻译：
基于报纸变黄的氧气感测
众所周知，报纸会随着时间的流逝而变黄。我们在这里表明，这种黄化过程在暴露于紫外线下时对氧气很敏感，从而导致了氧气的感应。氧气感应对许多应用至关重要，包括工业过程控制和呼吸分析，但是现有的氧气传感器有局限性，尤其是对于在100％湿度下运行的呼吸分析。紫外线照射还会触发报纸的荧光发射，并且荧光强度取决于氧气浓度，从而提供了一种附加的氧气感应方法。报纸在环境空气中稳定，并且仅在紫外线激活下对氧气具有反应性，从而克服了典型的比色传感器在环境空气中的不稳定性问题。报纸氧气传感器在100％相对湿度的空气中工作，其中包含各种干扰物。
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