Issue 15, 2010
From the journal:

Soft Matter

AFM topography and friction studies of hydrogen-bonded bilayers of functionalized alkanethiols†

Joost te Riet,ab   Tim Smit,a   Michiel J. J. Coenen,a   Jan W. Gerritsen,a   Alessandra Cambi,b   Johannes A. A. W. Elemans,*a   Sylvia Speller‡a  and  Carl G. Figdor‡b  

* Corresponding authors

a Department of Scanning Probe Microscopy, Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, Nijmegen, The Netherlands
E-mail: j.elemans@science.ru.nl
Fax: +31 24 365 2190
Tel: +31 24 365 3099

b Department of Tumor Immunology, Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Geert Grooteplein Zuid 28, Nijmegen, The Netherlands

Abstract

Atomic Force Microscope (AFM) assisted nanografting was exploited to construct—in a liquid—well-defined nanoscale patches of amino- and carboxyl-terminated alkanethiols in a SAM matrix on an atomically flat gold (Au(111)) surface. By means of AFM the nanografted patches of these thiols were studied in detail by a combination of height and quantitative lateral friction measurements. The functionalized thiols form well-ordered self-assembled bilayers, with uniformly oriented and packed molecules, consisting of a first layer adsorbed to the gold surface via thiol–gold bonds, and a second layer stably bound to the first via COOH–HOOC or NH2–H2N intermolecular hydrogen bonds.

Graphical abstract: AFM topography and friction studies of hydrogen-bonded bilayers of functionalized alkanethiols

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Article information

DOI
https://doi.org/10.1039/C0SM00130A
Article type
Communication
Submitted
19 Mar 2010
Accepted
06 Jun 2010
First published
21 Jun 2010

Soft Matter, 2010,6, 3450-3454

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AFM topography and friction studies of hydrogen-bonded bilayers of functionalized alkanethiols

J. te Riet, T. Smit, M. J. J. Coenen, J. W. Gerritsen, A. Cambi, J. A. A. W. Elemans, S. Speller and C. G. Figdor, Soft Matter, 2010, 6, 3450 DOI: 10.1039/C0SM00130A

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