Abstract

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.

Original languageEnglish (US)
Pages (from-to)160-166
Number of pages7
JournalACS Sensors
Volume3
Issue number1
DOIs
StatePublished - Jan 26 2018

Fingerprint

Oxygen
oxygen
Oxygen sensors
Atmospheric humidity
Air
Fluorescence
humidity
sensors
air
fluorescence
Ultraviolet radiation
Industrial applications
Process control
Chemical activation
Irradiation
actuators
activation
Sensors
irradiation
Costs

Keywords

  • breath analysis
  • optical sensing
  • oxygen sensing
  • paper-based sensor
  • yellowing of newspaper

ASJC Scopus subject areas

  • Bioengineering
  • Fluid Flow and Transfer Processes
  • Process Chemistry and Technology
  • Instrumentation

Cite this

Oxygen Sensing Based on the Yellowing of Newspaper. / Yu, Jingjing; Qin, Xingcai; Xian, Xiaojun; Tao, Nongjian.

In: ACS Sensors, Vol. 3, No. 1, 26.01.2018, p. 160-166.

Research output: Contribution to journalArticle

Yu, Jingjing ; Qin, Xingcai ; Xian, Xiaojun ; Tao, Nongjian. / Oxygen Sensing Based on the Yellowing of Newspaper. In: ACS Sensors. 2018 ; Vol. 3, No. 1. pp. 160-166.
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