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

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Schönherr, Holger and Beulen, Marcel W.J. and Bugler, Jürgen and Huskens, Jurriaan and Veggel, Frank C.J.M. van 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
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Science and Technology (TNW)
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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