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    Conformational switching in bis(zinc porphyrin) Langmuir–Schaefer film as an effective tool for selectively sensing aromatic amines

    Year: 2012

    Journal: Journal of Colloid and Interface Science, 2012, 385 (1), 282-284, 20131009

    Authors: Gabriele Giancane, Victor Borovkov, Yoshihisa Inoue, Ludovico Valli

    Organizations: Department of Cultural Heritage, University of Salento, Via per Arnesano, Lecce I-73100, Italy; Department of Applied Chemistry, Osaka University, 2-1 Yamada-oka, Suita 565-0871, Japan; Department of Biological and Environmental Sciences and Technologies, DISTEBA, University of Salento, Via per Arnesano, Lecce 73100, Italy

    A conformational switching of bis(zinc octaethylporphyrin) was observed, for the first time, in a Langmuir–Schaefer film as a consequence of appropriate host–guest interactions. The spectral changes are completely reversible and the high sensitivity (∼20 ppb) and specificity for aromatic amines open up interesting prospects of this functional material as a performing sensor for amines.