3 years ago

Room Temperature Phosphorescence based Dissolved Oxygen Detection by Core-shell Polymer Nanoparticles having Metal-free Organic Phosphor

Mounggon Kim, Ji Ho Youk, Jaehun Jung, Jinsang Kim, Youngchang Yu, Sergey Borisov, Johannes Gierschner, Kyeongwoon Chung, Yingying Zeng, Min Sang Kwon
Highly sensitive optical detection of oxygen including dissolved oxygen (DO) is of great interest in various applications. We devised a novel room temperature phosphorescence (RTP) based oxygen detection platform by constructing core-shell nanoparticles with water-soluble polymethyloxazoline shells and oxygen-permeable polystyrene core crosslinked with metal-free purely organic phosphors. The resulting nanoparticles show a very high sensitivity (limit of detection (LOD) of 60nM DO) and can be readily used for oxygen quantification in aqueous environments as well as gaseous phase.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/anie.201708606

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