Assembly of a fluorescent cyclodextrin polyrotaxane and its detection by fluorescence microscopy

Gerhard Wenz, Iris Kräuter, Erich Sackmann

Publikation: Beitrag in FachzeitschriftArtikelBegutachtung

10 Zitate (Scopus)

Abstract

A straightforward method for the assembly of fluorescent polyrotaxanes is described here. The consecutive threading of N-(6I-desoxy-b-cyclodextrin-6I-yl)- N0-(5-fluoresceinyl)-thiourea, b-CD-F, and a-CD onto poly(N,N-dimethyliminium- hexamethylen-N0,N0-dimethyliminium-decamethylene chloride), I-6,10, leads to a fluorescent polyrotaxane. Free b-CD-F could be distinguished from threaded b-CD-F by gel electrophoresis. Since the dissociation of threaded a-CD rings is sterically hindered, the obtained polyrotaxanes are kinetically stable at 25 °C, and they did not require further stabilization by the attachment of stopper groups at the chain ends. Single polyrotaxane entities could be visualized with both fluorescence microscopy and atomic force microscopy.

OriginalspracheEnglisch
Seiten (von - bis)6223-6230
Seitenumfang8
FachzeitschriftJournal of Polymer Science, Part A: Polymer Chemistry
Jahrgang47
Ausgabenummer22
DOIs
PublikationsstatusVeröffentlicht - 15 Nov. 2009

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