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Reversible Photodynamic Chloride-Selective Sensor Based on Photochromic Spiropyran

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Published in Journal of the American Chemical Society. 2012, vol. 134, no. 41, p. 16929-16932
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.
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Other version: http://pubs.acs.org/doi/abs/10.1021/ja307037z
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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. https://archive-ouverte.unige.ch/unige:39945

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Deposited on : 2014-09-03

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