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Proceedings Paper

Study and design of an optode for pH measurement
Author(s): Mathias Fages; Denis Doizi; Guy Deniau
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Paper Abstract

The GraftFast® process is a simple ant quick method to covalently graft a chemical on a substrate, provided that the chemical has an aromatic primary amine. Thus, this method is studied for an application in pH measurement via an optode. The aim of this PhD work, which started in October 2012, is to covalently graft a dye sensible to pH variations on an optical fiber, so as to be able to solve the stability issues encountered with other techniques used to assemble the dye and the optical fiber – like physical entrapment or electrostatic interactions. The work presented here explains the concept of an optode and the GraftFast® process. The first results obtained show the two dyes that will be studied, and that one ot those potential dyes, the neutral red, can be quite efficiently grafted on a gold substrate.

Paper Details

Date Published: 3 May 2013
PDF: 7 pages
Proc. SPIE 8774, Optical Sensors 2013, 87741F (3 May 2013); doi: 10.1117/12.2020771
Show Author Affiliations
Mathias Fages, CEA-DSM/IRAMIS/SPCSI/LCSI (France)
Denis Doizi, CEA-DEN/DANS/DPC/SECR/LRMO (France)

Published in SPIE Proceedings Vol. 8774:
Optical Sensors 2013
Francesco Baldini; Jiri Homola; Robert A. Lieberman, Editor(s)

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