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Title: Chiral liquid crystal colloids

Abstract

Colloidal particles disturb the alignment of rod-like molecules of liquid crystals, giving rise to long-range interactions that minimize the free energy of distorted regions. Particle shape and topology are known to guide this self-assembly process. However, how chirality of colloidal inclusions affects these long-range interactions is unclear. Here we study the effects of distortions caused by chiral springs and helices on the colloidal self-organization in a nematic liquid crystal using laser tweezers, particle tracking and optical imaging. We show that chirality of colloidal particles interacts with the nematic elasticity to predefine chiral or racemic colloidal superstructures in nematic colloids. These findings are consistent with numerical modelling based on the minimization of Landau–de Gennes free energy. In conclusion, our study uncovers the role of chirality in defining the mesoscopic order of liquid crystal colloids, suggesting that this feature may be a potential tool to modulate the global orientated self-organization of these systems.

Authors:
ORCiD logo [1];  [1];  [1];  [2]; ORCiD logo [3]
  1. Univ. of Colorado, Boulder, CO (United States)
  2. Max-Planck-Inst. für Intelligente Systeme, Stuttgart (Germany); Univ. Stuttgart, Stuttgart (Germany). Inst. für Theoretische Physik; Univ. de Lisboa, Lisboa (Portugal). Centro de Física Teórica e Computacional, Dept. de Física, Faculdade de Ciências
  3. Univ. of Colorado, Boulder, CO (United States); National Renewable Energy Lab. (NREL), Golden, CO (United States)
Publication Date:
Research Org.:
Univ. of Colorado, Boulder, CO (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
OSTI Identifier:
1594991
Grant/Contract Number:  
SC0010305
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Nature Materials
Additional Journal Information:
Journal Volume: 17; Journal Issue: 1; Journal ID: ISSN 1476-1122
Publisher:
Springer Nature - Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Yuan, Ye, Martinez, Angel, Senyuk, Bohdan, Tasinkevych, Mykola, and Smalyukh, Ivan I. Chiral liquid crystal colloids. United States: N. p., 2017. Web. doi:10.1038/nmat5032.
Yuan, Ye, Martinez, Angel, Senyuk, Bohdan, Tasinkevych, Mykola, & Smalyukh, Ivan I. Chiral liquid crystal colloids. United States. https://doi.org/10.1038/nmat5032
Yuan, Ye, Martinez, Angel, Senyuk, Bohdan, Tasinkevych, Mykola, and Smalyukh, Ivan I. Mon . "Chiral liquid crystal colloids". United States. https://doi.org/10.1038/nmat5032. https://www.osti.gov/servlets/purl/1594991.
@article{osti_1594991,
title = {Chiral liquid crystal colloids},
author = {Yuan, Ye and Martinez, Angel and Senyuk, Bohdan and Tasinkevych, Mykola and Smalyukh, Ivan I.},
abstractNote = {Colloidal particles disturb the alignment of rod-like molecules of liquid crystals, giving rise to long-range interactions that minimize the free energy of distorted regions. Particle shape and topology are known to guide this self-assembly process. However, how chirality of colloidal inclusions affects these long-range interactions is unclear. Here we study the effects of distortions caused by chiral springs and helices on the colloidal self-organization in a nematic liquid crystal using laser tweezers, particle tracking and optical imaging. We show that chirality of colloidal particles interacts with the nematic elasticity to predefine chiral or racemic colloidal superstructures in nematic colloids. These findings are consistent with numerical modelling based on the minimization of Landau–de Gennes free energy. In conclusion, our study uncovers the role of chirality in defining the mesoscopic order of liquid crystal colloids, suggesting that this feature may be a potential tool to modulate the global orientated self-organization of these systems.},
doi = {10.1038/nmat5032},
url = {https://www.osti.gov/biblio/1594991}, journal = {Nature Materials},
issn = {1476-1122},
number = 1,
volume = 17,
place = {United States},
year = {2017},
month = {11}
}

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Cited by: 28 works
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Works referenced in this record:

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