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Scientific article
Letter
English

Reversible Photodynamic Chloride-Selective Sensor Based on Photochromic Spiropyran

Published inJournal of the American Chemical Society, vol. 134, no. 41, p. 16929-16932
Publication date2012
Abstract

We report here for the first time on a reversible photodynamic bulk optode sensor based on the photoswitching of a spiropyran derivative (Sp). The photoswitching of Sp induces a large basicity increase in the polymeric phase, which triggers the extraction of Cl– and H+. Cl– is stabilized by a lipophilic chloride-selective ionophore inside the membrane, while H+ binds with the open form of Sp and induces a spectral change, hence providing the sensor signal. The system was studied with spectroscopic and electrochemical methods.

Citation (ISO format)
XIE, Xiaojiang, MISTLBERGER, Günter, BAKKER, Eric. Reversible Photodynamic Chloride-Selective Sensor Based on Photochromic Spiropyran. In: Journal of the American Chemical Society, 2012, vol. 134, n° 41, p. 16929–16932. doi: 10.1021/ja307037z
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ISSN of the journal0002-7863
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