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Proceedings Paper

In-vivo characterization of a microdialysis-based pH sensor
Author(s): F. Baldini; F. Feichtner; A. Giannetti; G. Gori; A. A. Mencaglia; V. Pavoni; A. M. Perna; C. Trono
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Paper Abstract

A pH sensor based on optical fibres was developed. The analysed sample is the interstitial fluid drawn from the adipose tissue by means of a microdialysis catheter. The pH sensing layer is constituted by a pH indicator, phenol red, directly immobilised onto the internal wall of a glass capillary. The interrogation of the glass capillary is performed by an optoelectronic unit, developed in our laboratory, which makes use of a light emitting diode at 590 nm as source and a photodiode as detector. A suitable animal model was developed and in-vivo tests on pigs were carried out.

Paper Details

Date Published: 2 July 2007
PDF: 4 pages
Proc. SPIE 6619, Third European Workshop on Optical Fibre Sensors, 661922 (2 July 2007); doi: 10.1117/12.738605
Show Author Affiliations
F. Baldini, Institute of Applied Physics, CNR (Italy)
F. Feichtner, Joanneum Research (Austria)
A. Giannetti, Institute of Applied Physics, CNR (Italy)
G. Gori, Univ. of Florence (Italy)
A. A. Mencaglia, Institute of Applied Physics, CNR (Italy)
V. Pavoni, Univ. of Florence (Italy)
A. M. Perna, Univ. of Florence (Italy)
C. Trono, Institute of Applied Physics, CNR (Italy)


Published in SPIE Proceedings Vol. 6619:
Third European Workshop on Optical Fibre Sensors

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