Molecular boxes on a molecular printboard: encapsulation of anionic dyes in immobilized dendrimers

Onclin, Steffen and Huskens, Jurriaan and Ravoo, Bart Jan and Reinhoudt, David N. (2005) Molecular boxes on a molecular printboard: encapsulation of anionic dyes in immobilized dendrimers. Small, 1 (8-9). pp. 852-857. ISSN 1613-6829

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Abstract:	Fifth-generation poly(propylene imine) dendrimers, modified with 64 apolar adamantyl groups, have been immobilized on cyclodextrin host monolayers (molecular printboards) on glass by supramolecular microcontact printing. The immobilized dendrimers retain their guest-binding properties and function as molecular boxes that can be filled with fluorescent dye molecules from solution. Alternatively, part of the immobilized dendrimers were filled with dye molecules by cross-microcontact printing while the remaining, empty dendrimers were filled with a different dye from solution, resulting in alternating patterns of dye molecules. In addition, we demonstrate that encapsulation of dyes in immobilized dendrimers is reversible: immobilized molecular boxes can be filled with a dye, emptied, and subsequently refilled with a different dye.
Item Type:	Article
Copyright:	© 2008 Wiley-VCH Verlag
Faculty:	Science and Technology (TNW)
Research Group:	Molecular Nanofabrication (MNF)
Link to this item:	http://purl.utwente.nl/publications/53004
Official URL:	http://dx.doi.org/10.1002/smll.200500078
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Metis ID: 225091