Individual supramolecular host-guest interactions studied by dynamic single molecule force spectroscopy

Schönherr, Holger and Beulen, Marcel W.J. and Bugler, Jürgen and Huskens, Jurriaan and Veggel van, Frank C.J.M. and Reinhoudt, David N. and Vancso, G. Julius (2000) Individual supramolecular host-guest interactions studied by dynamic single molecule force spectroscopy. Journal of the American Chemical Society, 122 (20). pp. 4963-4967. ISSN 0002-7863

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Abstract:	Supramolecular host-guest interactions in aqueous environment were studied by dynamic single molecule force spectroscopy. The unbinding between ferrocene moieties immobilized on atomic force microscopy tips and B-cyclodextrin receptors in highly ordered self-assembled monolayers on Au(111) was studied. The rupture force of individual ferrocene-B-cyclodextrin complexes was found to be 56 ± 10 pN. The value of this unbinding force was independent of the unloading rate. This was attributed to the fast (de)complexation kinetics of the host-guest complex.
Item Type:	Article
Copyright:	© 2000 American Chemical Society
Faculty:	Science and Technology (TNW)
Research Group:	Molecular Nanofabrication (MNF) Materials Science and Technology of Polymers (MTP)
Link to this item:	http://purl.utwente.nl/publications/11933
Official URL:	http://dx.doi.org/10.1021/ja994040i
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Metis ID: 106410