3 May 2013 Study and design of an optode for pH measurement
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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.
© (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Mathias Fages, Mathias Fages, Denis Doizi, Denis Doizi, Guy Deniau, Guy Deniau, "Study and design of an optode for pH measurement", Proc. SPIE 8774, Optical Sensors 2013, 87741F (3 May 2013); doi: 10.1117/12.2020771; https://doi.org/10.1117/12.2020771

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