title: Anchoring of fluorophores to plasma-chemically modified polymer surfaces and the effect of cucurbit[6]uril on dye emission.
abstract: Polypropylene supports were functionalized by plasma-deposition of polymeric allylamine layers. The surface amino groups generated were wet-chemically reacted with xanthene dyes resulting in fluorescent polymer films. The effect of polymer-attachment of the dyes on their emission features was studied fluorometrically and different methods were tested to improve the fluorescence properties of the films. Modification with cucurbit[6]uril (CB6) yields a moderately enhanced fluorescence as well as an improved photostability. The observed effect is most likely due to CB6-induced rigidization of the linker molecules which seems to reduce fluorescence quenching dye-dye and fluorophore-surface interactions.
authors.affiliation: Bundesanstalt für Materialforschung und -prüfung, Richard-Willstaetter-Str. 11, 12489, Berlin, Germany.
authors.forename: Katrin
authors.initials: K
authors.lastname: Hoffmann
authors.forename: Renate
authors.initials: R
authors.lastname: Mix
authors.forename: Joerg F
authors.initials: JF
authors.lastname: Friedrich
authors.forename: Hans-J
authors.initials: HJ
authors.lastname: Buschmann
authors.forename: Ute
authors.initials: U
authors.lastname: Resch-Genger