Room-Temperature-Phosphorescence-Based Dissolved Oxygen Detection by Core-Shell Polymer Nanoparticles Containing Metal-Free Organic Phosphors

Youngchang Yu, Min Sang Kwon, Jaehun Jung, Yingying Zeng, Mounggon Kim, Kyeongwoon Chung, Johannes Gierschner, Ji Ho Youk, Sergey M. Borisov, Jinsang Kim

Research output: Contribution to journalArticlepeer-review

153 Scopus citations

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 nm and can be readily used for oxygen quantification in aqueous environments as well as the gaseous phase.

Original languageEnglish
Pages (from-to)16207-16211
Number of pages5
JournalAngewandte Chemie - International Edition
Volume56
Issue number51
DOIs
StatePublished - 18 Dec 2017

Keywords

  • crosslinking
  • dissolved oxygen
  • metal-free organic phosphors
  • polymer nanoparticles
  • room-temperature phosphorescence

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