Dissolved oxygen sensor based on fluorescence quenching of oxygen-sensitive ruthenium complex immobilized on silica-Ni-P composite coating

Xiaoli Xiong, Dan Xiao*, Martin M F CHOI

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)

Abstract

A dissolved oxygen sensor based on the dynamic quenching of fluorescence from a ruthenium complex immobilized in a silica-Ni-P composite coating is reported. The silica-Ni-P composite coating was fabricated by dip-coating onto a 200 mesh copper-screen substrate. The composite coating was then doped with an oxygen-sensitive ruthenium complex, tris(2,2′-bipyridine)ruthenium dichloride, the fluorescence of which is quenched in the presence of oxygen. The preliminary result obtained with this composite coating indicates that this method can be an alternative approach for immobilizing oxygen-sensitive luminescent reagents.

Original languageEnglish
Pages (from-to)172-176
Number of pages5
JournalSensors and Actuators, B: Chemical
Volume117
Issue number1
DOIs
Publication statusPublished - 12 Sep 2006

Scopus Subject Areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

User-Defined Keywords

  • Dissolved oxygen sensor
  • Fluorescence quenching
  • Silica-Ni-P composite coating

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