Miniaturised optical fiber pH sensor for gastro-esophageal applications

F. Baldini; F. Chiavaioli; F. Cosi; A. Giannetti; S. Tombelli; C. Trono

doi:10.1117/12.2026807

20 May 2013 Miniaturised optical fiber pH sensor for gastro-esophageal applications

F. Baldini, F. Chiavaioli, F. Cosi, A. Giannetti, S. Tombelli, C. Trono

Proceedings Volume 8794, Fifth European Workshop on Optical Fibre Sensors; 87941Q (2013) https://doi.org/10.1117/12.2026807
Event: Fifth European Workshop on Optical Fibre Sensors, 2013, Krakow, Poland

Abstract

Monitoring pH for long periods, usually 24 h, in the stomach and in the esophagus may be essential in the diagnosis of gastro-esophageal diseases. The clinical range of interest is quite extended, between 1 to 8 pH units. Methyl red, after its covalent immobilization on controlled pore glass (CPG), is characterized by a working range which fits well with the clinical one. A novel probe, suitable for gastro-esophageal applications, was designed in order to optimize the performances of the colored CPG. This leads to a very simple probe configuration characterized by a very fast response.

Citation Download Citation

F. Baldini, F. Chiavaioli, F. Cosi, A. Giannetti, S. Tombelli, and C. Trono "Miniaturised optical fiber pH sensor for gastro-esophageal applications", Proc. SPIE 8794, Fifth European Workshop on Optical Fibre Sensors, 87941Q (20 May 2013); https://doi.org/10.1117/12.2026807

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