Journal
NANOSCALE
Volume 8, Issue 27, Pages 13192-13198Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6nr03404g
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Funding
- CNRS-UPENN-SOLVAY through the Complex Assemblies of Soft Matter Lab. (COMPASS)
- Penn's NSF MRSEC [DMR-1120901]
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The phase-transfer of CTAB-coated aqueous, spherical gold nano-particles, 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.
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