title: Light-Activated Sensitive Probes for Amine Detection.
abstract: Our new, simple, and accurate colorimetric method is based on diarylethenes (DAEs) for the rapid detection of a wide range of primary and secondary amines. The probes consist of aldehyde- or ketone-substituted diarylethenes, which undergo an amine-induced decoloration reaction, selectively to give the ring-closed isomer. Thus, these probes can be activated at the desired moment by light irradiation, with a sensitivity that allows the detection of amines at concentrations as low as 10-6m in solution. In addition, the practical immobilization of DAEs on paper makes it possible to detect biogenic amines, such as cadaverine, in the gas phase above a threshold of 12 ppbv within 30 seconds.
authors.affiliation: Institut für Chemie & IRIS Adlershof, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany.
authors.forename: Virginia
authors.identifier: 0000-0002-4444-7424
authors.initials: V
authors.lastname: Valderrey
authors.affiliation: Institut für Chemie & IRIS Adlershof, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany.
authors.forename: Aurelio
authors.identifier: 0000-0003-3275-6809
authors.initials: A
authors.lastname: Bonasera
authors.affiliation: Institut für Chemie & IRIS Adlershof, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany.
authors.forename: Sebastian
authors.identifier: 0000-0003-4091-8556
authors.initials: S
authors.lastname: Fredrich
authors.affiliation: Institut für Chemie & IRIS Adlershof, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany.
authors.forename: Stefan
authors.identifier: 0000-0002-6124-0222
authors.initials: S
authors.lastname: Hecht
keywords: amines; diarylethenes; photochromism; sensing