Indicator-Loaded Permeation-Selective Microbeads for Use in Fiber Optic Simultaneous Sensing of pH and Dissolved Oxygen

DOI to cite this document:: 10.5283/epub.20204

Vasylevska, Ganna S. ; Borisov, Sergey M.

; Krause, Christian ; Wolfbeis, Otto S.

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Date of publication of this fulltext: 18 Mar 2011 08:09

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Abstract

New materials are described that lead to sensors capable of simultaneous sensing of pH and oxygen via a single-fiber optic sensor. They make use of a pH probe based on carboxyfluorescein, and of a ruthenium(II) complex acting as a probe for dissolved oxygen. The selectivity of the probes was considerably improved by incorporating them into two kinds of microparticles, each of specific permeation ...