Temperature-controlled liquid crystalline polymorphism of gold nanoparticlesElectronic supplementary information (ESI) available: Synthesis and characterization of studied material and description of experimental techniques used. See DOI: 10.1039/c1sm06436c

Gold nanoparticles grafted with promesogenic ligands show temperature induced liquid crystalline polymorphism with unique phase sequence: from smectic to columnar structure. The transition is entropy driven; with increasing temperature ligands attached to nanoparticle surface require more space to f...

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Bibliographic Details
Main Authors: Wojcik, Michal M, Gora, Monika, Mieczkowski, Jozef, Romiszewski, Jerzy, Gorecka, Ewa, Pociecha, Damian
Format: Article
Language:English
Online Access:Get full text
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Summary:Gold nanoparticles grafted with promesogenic ligands show temperature induced liquid crystalline polymorphism with unique phase sequence: from smectic to columnar structure. The transition is entropy driven; with increasing temperature ligands attached to nanoparticle surface require more space to fluctuate. In result smectic layer becomes deformed ('peristaltic mode') and voids between metal particles filled with organic molecules form a hexagonal structure. Gold nanoparticles grafted with promesogenic molecules show temperature induced liquid crystalline polymorphism with unique phase sequence: from smectic to columnar structure.
ISSN:1744-683X
1744-6848
DOI:10.1039/c1sm06436c