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Title: Liquid Crystal Mediated Interactions Between Nanoparticles in a Nematic Phase

Abstract

A continuum theory is used to study the interactions between nanoparticles suspended in nematic liquid crystals. The free energy functional that describes the system is minimized using an Euler–Lagrange approach and an unsymmetric radial basis function method. It is shown that nanoparticle liquid-crystal mediated interactions can be controlled over a large range of magnitudes through changes of the anchoring energy and the particle diameter. Finally, the results presented in this work serve to reconcile past discrepancies between theoretical predictions and experimental observations, and suggest intriguing possibilities for directed nanoparticle self-assembly in liquid crystalline media.

Authors:
 [1];  [1];  [1];  [2];  [1]
+ Show Author Affiliations
  1. Univ. of Wisconsin, Madison, WI (United States)
  2. Univ. Nacional de Colombia, Medellín (Colombia)
Publication Date:
Research Org.:
Univ. of Wisconsin, Madison, WI (United States); Univ. of Chicago, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
OSTI Identifier:
1630265
Grant/Contract Number:  
SC0004025; DMR-0425880
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Langmuir
Additional Journal Information:
Journal Volume: 28; Journal Issue: 14; Journal ID: ISSN 0743-7463
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; free energy; binding energy; nanoparticles; defects; order

Citation Formats

Tomar, V., Roberts, T. F., Abbott, N. L., Hernández-Ortiz, J. P., and de Pablo, J. J. Liquid Crystal Mediated Interactions Between Nanoparticles in a Nematic Phase. United States: N. p., 2012. Web. doi:10.1021/la204119p.
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Tomar, V., Roberts, T. F., Abbott, N. L., Hernández-Ortiz, J. P., & de Pablo, J. J. Liquid Crystal Mediated Interactions Between Nanoparticles in a Nematic Phase. United States. https://doi.org/10.1021/la204119p
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Tomar, V., Roberts, T. F., Abbott, N. L., Hernández-Ortiz, J. P., and de Pablo, J. J. Mon . "Liquid Crystal Mediated Interactions Between Nanoparticles in a Nematic Phase". United States. https://doi.org/10.1021/la204119p. https://www.osti.gov/servlets/purl/1630265.
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@article{osti_1630265,
title = {Liquid Crystal Mediated Interactions Between Nanoparticles in a Nematic Phase},
author = {Tomar, V. and Roberts, T. F. and Abbott, N. L. and Hernández-Ortiz, J. P. and de Pablo, J. J.},
abstractNote = {A continuum theory is used to study the interactions between nanoparticles suspended in nematic liquid crystals. The free energy functional that describes the system is minimized using an Euler–Lagrange approach and an unsymmetric radial basis function method. It is shown that nanoparticle liquid-crystal mediated interactions can be controlled over a large range of magnitudes through changes of the anchoring energy and the particle diameter. Finally, the results presented in this work serve to reconcile past discrepancies between theoretical predictions and experimental observations, and suggest intriguing possibilities for directed nanoparticle self-assembly in liquid crystalline media.},
doi = {10.1021/la204119p},
url = {https://www.osti.gov/biblio/1630265}, journal = {Langmuir},
issn = {0743-7463},
number = 14,
volume = 28,
place = {United States},
year = {2012},
month = {3}
}
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Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1021/la204119p
Copyright Statement
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Cited by: 42 works
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Works referencing / citing this record:

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Dispersions of ellipsoidal particles in a nematic liquid crystal
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Thermodynamic modelling of acidic collagenous solutions: from free energy contributions to phase diagrams
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Dielectric properties and activation energies of Cu: ZnO dispersed nematic mesogen N-(4-methoxybenzylidene)-4-butylaniline liquid crystal
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Ordering nano- and microparticles assemblies with liquid crystals
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Fluctuations and phase transitions of uniaxial and biaxial liquid crystals using a theoretically informed Monte Carlo and a Landau free energy density
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Topological defects in an unconfined nematic fluid induced by single and double spherical colloidal particles
journal, October 2017

Hybrid molecular-colloidal liquid crystals
journal, May 2018

Conjugation of Nanomaterials and Nematic Liquid Crystals for Futuristic Applications and Biosensors
journal, July 2018

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