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Issue 34, 2012
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Thermoresponsive cyclodextrins with switchable inclusion abilities

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Abstract

Cyclodextrins (CDs) modified with oligoethylene glycols (OEGs) show unprecedented thermoresponsive properties in aqueous solutions and their phase transition temperatures can be mediated in the range of 24–63 °C depending on the ring size of CDs and the structure of the OEG units. Their synthesis, thermoresponsive behavior, and host-guest chemistry are described herein. Similar to the native CDs, these CD derivatives display strong inclusion ability for dyes below the phase transition temperatures. Moreover, the encapsulated dyes can be easily released due to the dehydration of OEG units at elevated temperatures, associated with an obvious color change of the aqueous solutions, which makes these CD species unique as scaffolds for colorimetric sensors.

Graphical abstract: Thermoresponsive cyclodextrins with switchable inclusion abilities

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Supplementary files

Article information


Submitted
24 May 2012
Accepted
03 Jul 2012
First published
04 Jul 2012

J. Mater. Chem., 2012,22, 17424-17428
Article type
Communication

Thermoresponsive cyclodextrins with switchable inclusion abilities

J. Yan, W. Li, X. Zhang, K. Liu, P. Wu and A. Zhang, J. Mater. Chem., 2012, 22, 17424
DOI: 10.1039/C2JM33328G

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