研究新闻

IF 0.7 Q3 CRYSTALLOGRAPHY Liquid Crystals Today Pub Date : 2020-01-02 DOI:10.1080/1358314X.2020.1771847
A. Draude
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引用次数: 0

摘要

活性物质,其中局部能量被转换为定向运动,是当前软物质研究中一个非常感兴趣的领域,在软机器人中有潜在的应用。活性向列相是一类活性物质,其中向列相中分散有活性颗粒。在本文中,Turiv等人通过显微镜研究了溶致变色液晶DSCG向列相中高浓度和低浓度的游动细菌。照片对齐用于创建图案化的指向矢场。包括张开和弯曲在内的模式用于聚焦细菌的轨迹,直线射流在高浓度细菌下波动。这些射流被证明是由背景指向矢场稳定的,实验结果得到了模拟的支持。在任一浓度的细菌流中,微球被显示为沿着预先图案化的流传输。
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Research news
Active matter, in which local energy is converted into directed motion, is an area of strong interest in current soft matter research for potential applications in soft robotics. Living nematics are a category of active matter where nematic phases have active particles dispersed in them. In this paper, Turiv et al. study high and low concentrations of swimming bacteria in the nematic phase of the lyotropic chromonic liquid crystal DSCG via microscopy. Photo-alignment is used to create patterned director fields. Patterns including splay and bend are used to focus the trajectory of the bacteria and rectilinear jets undulate at high concentrations of bacteria. These jets are shown to be stabilised by the background director field and the experimental results are supported by simulations. In flows of either concentration of bacteria micro-spheres are shown to be transported along the pre-patterned flows.
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来源期刊
Liquid Crystals Today
Liquid Crystals Today CRYSTALLOGRAPHY-
CiteScore
2.80
自引率
0.00%
发文量
19
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