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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

Zhang, H., Grim, P. C. M., Tiu, D. J., 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.

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 Creators:
Zhang, H., Author
Grim, P. C. M., Author
Tiu, D. J., Author
Vosch, T., Author
De Feyter, S., Author
Wiesler, U. M.1, Author              
Berresheim, A. J., Author
Müllen, Klaus1, Author              
Van Haesendonck, C., Author
Vandamme, N., Author
De Schryver, F. C., Author
Affiliations:
1MPI for Polymer Research, Max Planck Society, ou_1309545              

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 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.

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Language(s): eng - English
 Dates: 2002-03-05
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: No review
 Identifiers: eDoc: 28539
ISI: 000174130500053
Other: P-02-21
 Degree: -

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Title: Langmuir
  Alternative Title : Langmuir
Source Genre: Journal
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Pages: - Volume / Issue: 18 (5) Sequence Number: - Start / End Page: 1801 - 1810 Identifier: ISSN: 0743-7463