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Room‐Temperature‐Phosphorescence‐Based Dissolved Oxygen Detection by Core‐Shell Polymer Nanoparticles Containing Metal‐Free Organic Phosphors
Author(s) -
Yu Youngchang,
Kwon Min Sang,
Jung Jaehun,
Zeng Yingying,
Kim Mounggon,
Chung Kyeongwoon,
Gierschner Johannes,
Youk Ji Ho,
Borisov Sergey M.,
Kim Jinsang
Publication year - 2017
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201708606
Subject(s) - phosphorescence , detection limit , phosphor , nanoparticle , oxygen , polystyrene , aqueous solution , polymer , oxygen sensor , materials science , chemical engineering , metal , chemistry , nanotechnology , fluorescence , chromatography , organic chemistry , optoelectronics , physics , quantum mechanics , engineering
Abstract The 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 cores crosslinked with metal‐free purely organic phosphors. The resulting nanoparticles show a very high sensitivity for DO with a limit of detection (LOD) of 60 n m and can be readily used for oxygen quantification in aqueous environments as well as the gaseous phase.