Heat-Driven Rigid-Body Rotation of a Mixture of Cholesteric Liquid Crystal Droplets and Colloids.,The Journal of Physical Chemistry B

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Heat-Driven Rigid-Body Rotation of a Mixture of Cholesteric Liquid Crystal Droplets and Colloids.
The Journal of Physical Chemistry B ( IF 2.8 ) Pub Date : 2020-06-19 , DOI: 10.1021/acs.jpcb.0c04186
Shinji Bono ₁ , Yuji Maruyama ₁ , Katsu Nishiyama ₁ , Yuka Tabe ₁

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We show that cholesteric (Ch) liquid crystal droplets with cylindrically symmetric orientation dispersing in an isotropic (Iso) phase exhibited unidirectional rotation under a heat flux along the symmetry axis. By introducing colloidal particle adhesive to the Ch droplet surface, we traced the translational motion of the colloids and found that the colloids rotated unidirectionally around the center of each Ch droplet. The director configuration of the droplets was not distorted either spatially or temporally, while the colloids rotated constantly. The results suggest that the Ch droplets under the heat flux should rotate as a rigid body. Using this heat-driven rotation of the Ch droplets, we designed new geometries of various composites of Ch droplets and colloids and succeeded in driving intriguing complex dynamics.

中文翻译：

胆固醇液晶液滴和胶体混合物的热驱动刚性旋转。

我们显示胆甾型（Ch）液晶液滴具有分散在各向同性（Iso）相中的圆柱对称取向，在沿对称轴的热通量下表现出单向旋转。通过将胶体粒子粘合剂引入到Ch液滴表面，我们追踪了胶体的平移运动，发现胶体围绕每个Ch液滴的中心单向旋转。在胶体不断旋转的同时，液滴的指向矢构型在空间或时间上都不会变形。结果表明，在热通量下的Ch液滴应作为刚体旋转。利用Ch小滴的这种热驱动旋转，我们设计了Ch小滴和胶体的各种复合物的新几何形状，并成功地驱动了有趣的复杂动力学。

更新日期：2020-07-16

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