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Issue 27, 2016
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Dendronization-induced phase-transfer, stabilization and self-assembly of large colloidal Au nanoparticles

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Abstract

The phase-transfer of CTAB-coated aqueous, spherical gold nanoparticles, with metallic core diameters ranging from ca. 27 to 54 nm, into organic solvents by exchanging the primitive polar bilayer with lipophilic, disulfide dendritic ligands is reported. The presence of such a thick nonpolar organic shell around these large nanoparticles enhances their stabilization against aggregation, in addition to enabling their transfer into a variety of solvents such as chloroform, toluene or tetrahydrofuran. Upon the slow evaporation of a chloroform suspension deposited on a solid support, the dendronized hybrids were found to self-assemble into ring structures of various diameters. Moreover, their self-assembly at the liquid–air interface affords the formation of fairly long-range ordered monolayers, over large areas, that can then be entirely transferred onto solid substrates.

Graphical abstract: Dendronization-induced phase-transfer, stabilization and self-assembly of large colloidal Au nanoparticles

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Publication details

The article was received on 26 Apr 2016, accepted on 18 Jun 2016 and first published on 21 Jun 2016


Article type: Communication
DOI: 10.1039/C6NR03404G
Nanoscale, 2016,8, 13192-13198

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    Dendronization-induced phase-transfer, stabilization and self-assembly of large colloidal Au nanoparticles

    L. Malassis, D. Jishkariani, C. B. Murray and B. Donnio, Nanoscale, 2016, 8, 13192
    DOI: 10.1039/C6NR03404G

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