Inspired by the enol-degradation of luciferin, a new oxygen sensor with oppositely changed color and fluorescence has been designed. This new reaction-based dual mode sensor can not only be used as a highly selective instant “fluorescence on” oxygen probe, but also as a freshness indicator of food or food materials by using its property of time-adjustable color fading.
Y. Zhang, X. Wang, W. Li, W. Zhang, M. Li and S. X. Zhang, Chem. Commun., 2014, 50, 13477 DOI: 10.1039/C4CC05831C
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