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Probing carboxylic acid groups in replaced and mixed self-assembled monolayers by individual ionized dendrimer molecules :  an atomic force microscopy study

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Probing carboxylic acid groups in replaced and mixed self-assembled monolayers by individual ionized dendrimer molecules :  an atomic force microscopy study

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dc.contributor.author Zhang, Hua
dc.contributor.author Grim, P. C. M.
dc.contributor.author Liu, Daojun
dc.contributor.author Vosch, T.
dc.contributor.author De Feyter, Steven
dc.contributor.author Wiesler, U. M.
dc.contributor.author Berresheim, A. J.
dc.contributor.author Müllen, K.
dc.contributor.author Van Haesendonck, C.
dc.contributor.author Vandamme, N.
dc.contributor.author De Schryver, F. C.
dc.date.accessioned 2012-09-14T06:37:12Z
dc.date.available 2012-09-14T06:37:12Z
dc.date.copyright 2002
dc.date.issued 2012-09-14
dc.identifier.citation Zhang, H., Grim, P. C. M., Liu, D., Vosch, T., De Feyter, S., Wiesler, U. M., et al. (2002). Probing carboxylic acid groups in replaced and mixed self-assembled monolayers by individual ionized dendrimer molecules :  an atomic force microscopy study. Langmuir, 18(5), 1801-1810.
dc.identifier.issn 0743-7463
dc.identifier.uri http://hdl.handle.net/10220/8549
dc.description.abstract Polyphenylene dendrimer molecules, G2Td(COOH)16, were ionized (G2 ions) and then adsorbed on a carboxylic acid (COOH) group terminated self-assembled monolayer (SAM) on a Au substrate through the linkage with Cu2+ ions. The individual G2 ions were observed by noncontact atomic force microscopy (NCAFM). The strong interaction between the G2 and Cu2+ ions, the latter of which are preadsorbed on the COOH SAM, led to a compression or deformation of the SAM and resulted in a decreased height of the G2 ions measured by NCAFM as compared to a theoretical model of the dendrimer molecules. The present method offers an approach to bind dendrimer molecules to a solid substrate and to study the nanoscale behavior of two kinds of thiol molecules in replaced and mixed SAMs.
dc.language.iso en
dc.relation.ispartofseries Langmuir
dc.rights © 2002 American Chemical Society.
dc.subject DRNTU::Engineering::Materials
dc.title Probing carboxylic acid groups in replaced and mixed self-assembled monolayers by individual ionized dendrimer molecules :  an atomic force microscopy study
dc.type Journal Article
dc.contributor.school School of Materials Science and Engineering
dc.identifier.doi http://dx.doi.org/10.1021/la011061t

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