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Issue 42, 2013
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Mechanistic control over morphology: self-assembly of a discotic amphiphile in water

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Abstract

We report on the self-assembly of discotic amphiphiles that contain chelated gadolinium(III) ions and are based on the C3-symmetrical benzene-1,3,5-tricarboxamide motif. Fluorescence spectroscopy, SAXS and cryo-TEM experiments demonstrate that a bimodal distribution of small and large aggregates is formed in a ratio that is dependent on the ionic strength. The results correlate with the previously reported degree of cooperativity of the polymerization mechanism, which increases with increasing NaCl concentration. Hence, by tuning the electrostatic interactions between the ligands at the periphery we can tune the cooperativity of the self-assembly. This tunability provides a versatile handle to adjust the size and shape of the discotic amphiphiles, which have potential as supramolecular MRI contrast agents.

Graphical abstract: Mechanistic control over morphology: self-assembly of a discotic amphiphile in water

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Publication details

The article was received on 05 Aug 2013, accepted on 21 Aug 2013 and first published on 23 Aug 2013


Article type: Paper
DOI: 10.1039/C3SM52104D
Citation: Soft Matter, 2013,9, 10025-10030
  • Open access: Creative Commons BY license
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    Mechanistic control over morphology: self-assembly of a discotic amphiphile in water

    I. de Feijter, P. Besenius, L. Albertazzi, E. W. Meijer, A. R. A. Palmans and I. K. Voets, Soft Matter, 2013, 9, 10025
    DOI: 10.1039/C3SM52104D

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