Liquid Crystal Phases in Suspensions of Charged Plate-Like Particles
(2012) In The Journal of Physical Chemistry Letters 3(10). p.1315-1320- Abstract
- Anisotropic interactions in colloidal suspensions have recently emerged as a route for the design of new soft materials. Nonisotropic particles can form nematic, smectic, hexatic, and columnar liquid crystals. Although the formation of these phases is well rationalized when excluded volume is solely at play, the role of electrostatic interactions still remains unclear and even less so when particles present a charge heterogeneity, for example, clays. Here, we use Monte Carlo simulations of concentrated suspensions of charged disk-like particles to reveal the role of Coulomb interactions and charge anisotropy underlying liquid crystal formation and structures. We observe a vast zoo of exotic structures, going from hexatic to columnar... (More)
- Anisotropic interactions in colloidal suspensions have recently emerged as a route for the design of new soft materials. Nonisotropic particles can form nematic, smectic, hexatic, and columnar liquid crystals. Although the formation of these phases is well rationalized when excluded volume is solely at play, the role of electrostatic interactions still remains unclear and even less so when particles present a charge heterogeneity, for example, clays. Here, we use Monte Carlo simulations of concentrated suspensions of charged disk-like particles to reveal the role of Coulomb interactions and charge anisotropy underlying liquid crystal formation and structures. We observe a vast zoo of exotic structures, going from hexatic to columnar phases, which are shown to be controlled by the charge anisotropy. The particle volume fraction at which these phases start to form is found to decrease with increasing Coulomb interactions and charge anisotropy, which suggests a route to tune the structure of aqueous liquid crystals. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2812952
- author
- Delhorme, Maxime ; Labbez, Christophe and Jönsson, Bo LU
- organization
- publishing date
- 2012
- type
- Contribution to journal
- publication status
- published
- subject
- in
- The Journal of Physical Chemistry Letters
- volume
- 3
- issue
- 10
- pages
- 1315 - 1320
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000304073800015
- scopus:84862080663
- ISSN
- 1948-7185
- DOI
- 10.1021/jz300380n
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Theoretical Chemistry (S) (011001039)
- id
- c7edc5a3-9fa7-417f-b9ba-8dfd4b03d080 (old id 2812952)
- date added to LUP
- 2016-04-01 14:07:11
- date last changed
- 2023-01-27 18:52:59
@article{c7edc5a3-9fa7-417f-b9ba-8dfd4b03d080,
abstract = {{Anisotropic interactions in colloidal suspensions have recently emerged as a route for the design of new soft materials. Nonisotropic particles can form nematic, smectic, hexatic, and columnar liquid crystals. Although the formation of these phases is well rationalized when excluded volume is solely at play, the role of electrostatic interactions still remains unclear and even less so when particles present a charge heterogeneity, for example, clays. Here, we use Monte Carlo simulations of concentrated suspensions of charged disk-like particles to reveal the role of Coulomb interactions and charge anisotropy underlying liquid crystal formation and structures. We observe a vast zoo of exotic structures, going from hexatic to columnar phases, which are shown to be controlled by the charge anisotropy. The particle volume fraction at which these phases start to form is found to decrease with increasing Coulomb interactions and charge anisotropy, which suggests a route to tune the structure of aqueous liquid crystals.}},
author = {{Delhorme, Maxime and Labbez, Christophe and Jönsson, Bo}},
issn = {{1948-7185}},
language = {{eng}},
number = {{10}},
pages = {{1315--1320}},
publisher = {{The American Chemical Society (ACS)}},
series = {{The Journal of Physical Chemistry Letters}},
title = {{Liquid Crystal Phases in Suspensions of Charged Plate-Like Particles}},
url = {{http://dx.doi.org/10.1021/jz300380n}},
doi = {{10.1021/jz300380n}},
volume = {{3}},
year = {{2012}},
}