Liquid-crystal enabled electrophoresis: Scenarios for driving and reconfigurable assembling of colloids

被引：12
作者：
Hernandez-Navarro, S. [1 ,3 ]
Tierno, P. [2 ,3 ]
Ignes-Mullol, J. [1 ,3 ]
Sagues, F. [1 ,3 ]
机构：
[1] Univ Barcelona, Dept Phys Chem, E-08028 Barcelona, Spain
[2] Univ Barcelona, Dept Struct & Constituents Matter, E-08028 Barcelona, Spain
[3] Univ Barcelona, IN2UB, Inst Nanosci & Nanotechnol, Barcelona, Spain
来源：
EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS | 2015年 / 224卷 / 07期
基金：
欧洲研究理事会;
关键词：
TOPOLOGICAL DEFECTS; NEMATIC EMULSIONS; ELECTRIC-FIELD; ACTIVE MATTER; MOTION; PARTICLES; PATTERNS; DEVICES;
D O I：
10.1140/epjst/e2015-02458-y
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We demonstrate several examples of driving and steering of colloids when dispersed in nematic liquid crystals. The driving mechanism is based on the principle of nonlinear electrophoresis which is mediated by the asymmetry in the structure of the defects that the inclusions generate in the host elastic matrix. The steering mechanism originates in the photoactivation of the anchoring conditions of the nematic liquid crystal on one of the enclosing plates. As experimental realizations we first review a scenario of water microdroplets being phoretically transported for cargo release and chemical reaction. Steering is illustrated in terms of the reconfigurable assembly of colloidal particles, either in the form of asters or rotating-mills, commanded by predesigned patterns of illumination.
引用
收藏
页码：1263 / 1273
页数：11
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共 48 条
  • [1] Nanorod-Driven Orientational Control of Liquid Crystal for Polarization-Tailored Electro-Optic Devices
    Acharya, Somobrata
    Kundu, Sudarshan
    Hill, Jonathan P.
    Richards, Gary J.
    Ariga, Katsuhiko
    [J]. ADVANCED MATERIALS, 2009, 21 (09) : 989 - +
  • [2] Colloid-in-Liquid Crystal Gels that Respond to Biomolecular Interactions
    Agarwal, Ankit
    Sidiq, Sumyra
    Setia, Shilpa
    Bukusoglu, Emre
    de Pablo, Juan J.
    Pal, Santanu Kumar
    Abbott, Nicholas L.
    [J]. SMALL, 2013, 9 (16) : 2785 - 2792
  • [3] Emergence of macroscopic directed motion in populations of motile colloids
    Bricard, Antoine
    Caussin, Jean-Baptiste
    Desreumaux, Nicolas
    Dauchot, Olivier
    Bartolo, Denis
    [J]. NATURE, 2013, 503 (7474) : 95 - 98
  • [4] Dynamical Clustering and Phase Separation in Suspensions of Self-Propelled Colloidal Particles
    Buttinoni, Ivo
    Bialke, Julian
    Kuemmel, Felix
    Loewen, Hartmut
    Bechinger, Clemens
    Speck, Thomas
    [J]. PHYSICAL REVIEW LETTERS, 2013, 110 (23)
  • [5] The golden age: gold nanoparticles for biomedicine
    Dreaden, Erik C.
    Alkilany, Alaaldin M.
    Huang, Xiaohua
    Murphy, Catherine J.
    El-Sayed, Mostafa A.
    [J]. CHEMICAL SOCIETY REVIEWS, 2012, 41 (07) : 2740 - 2779
  • [6] Induced-charge electrophoresis of metallodielectric particles
    Gangwal, Sumit
    Cayre, Olivier J.
    Bazant, Martin Z.
    Velev, Orlin D.
    [J]. PHYSICAL REVIEW LETTERS, 2008, 100 (05)
  • [7] A revolution in optical manipulation
    Grier, DG
    [J]. NATURE, 2003, 424 (6950) : 810 - 816
  • [8] Observation of Saturn-ring defects around solid microspheres in nematic liquid crystals
    Gu, YD
    Abbott, NL
    [J]. PHYSICAL REVIEW LETTERS, 2000, 85 (22) : 4719 - 4722
  • [9] The structure and stability of multiple micro-droplets
    Guzowski, Jan
    Korczyk, Piotr M.
    Jakiela, Slawomir
    Garstecki, Piotr
    [J]. SOFT MATTER, 2012, 8 (27) : 7269 - 7278
  • [10] Reconfigurable Swarms of Nematic Colloids Controlled by Photoactivated Surface Patterns
    Hernandez-Navarro, Sergi
    Tierno, Pietro
    Anton Farrera, Joan
    Ignes-Mullol, Jordi
    Sagues, Francesc
    [J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2014, 53 (40) : 10696 - 10700
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