Issue 22, 2011
From the journal:

Soft Matter

Temperature-controlled liquid crystalline polymorphism of gold nanoparticles†

Michal M. Wojcik,a   Monika Gora,a   Jozef Mieczkowski,a   Jerzy Romiszewski,a   Ewa Goreckaa  and  Damian Pociecha*a  

* Corresponding authors

a University of Warsaw, Department of Chemistry, Pasteura 1, Warsaw, Poland
E-mail: pociu@chem.uw.edu.pl
Tel: +48 22 8221075

Abstract

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.

Graphical abstract: Temperature-controlled liquid crystalline polymorphism of gold nanoparticles

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Article information

DOI
https://doi.org/10.1039/C1SM06436C
Article type
Communication
Submitted
27 Jul 2011
Accepted
24 Aug 2011
First published
30 Sep 2011

Soft Matter, 2011,7, 10561-10564

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Temperature-controlled liquid crystalline polymorphism of gold nanoparticles

M. M. Wojcik, M. Gora, J. Mieczkowski, J. Romiszewski, E. Gorecka and D. Pociecha, Soft Matter, 2011, 7, 10561 DOI: 10.1039/C1SM06436C

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