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Issue 44, 2017
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An inverted supramolecular amphiphile and its step-wise self-assembly into vesicular networks

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Abstract

A host–guest interaction between a multi-cationic dendrimer 1 functionalized with 16 guanidiniocarbonyl pyrrole (GCP) groups on its surface and naphthalene diimide dicarboxylic acid (NDIDC) in a 1 : 8 ratio leads to the formation of a new type of inverted amphiphile. This amphiphile further self-assembles in a step-wise manner first into reverse micelles and then into reverse vesicles, which adhere to form an extensive 3D network several micrometers in length. Self-assembly is based on the aromatic stacking interactions of the surface-bound NDIDC. Furthermore, these aggregates only form at neutral pH but not in acidic or basic solutions in which no ion pairing between 1 and NDIDC is possible. The step-wise self-assembly process of the inverted amphiphile which follows a theoretical prediction recently proposed for hyperbranched polymers was studied and visualized in detail using atomic force microscopy (AFM) and transmission electron microscopy (TEM).

Graphical abstract: An inverted supramolecular amphiphile and its step-wise self-assembly into vesicular networks

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The article was received on 15 Aug 2017, accepted on 17 Oct 2017 and first published on 17 Oct 2017


Article type: Paper
DOI: 10.1039/C7SM01641G
Citation: Soft Matter, 2017,13, 8108-8112
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    An inverted supramolecular amphiphile and its step-wise self-assembly into vesicular networks

    K. Samanta, E. Zellermann, M. Zähres, C. Mayer and C. Schmuck, Soft Matter, 2017, 13, 8108
    DOI: 10.1039/C7SM01641G

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