期刊
SOFT MATTER
卷 10, 期 44, 页码 8813-8820出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4sm01354a
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资金
- Ministry of Education, Culture, Sports, Science, and Technology of Japan [25103006]
- Grants-in-Aid for Scientific Research [24540408, 25800232, 25103006] Funding Source: KAKEN
Tunable transport of tiny objects in fluid systems is demanding in diverse fields of science such as drug delivery, active matter far from equilibrium, and lab-on-a-chip applications. Here, we report the directed motion of colloidal particles and self-assembled colloidal chains in a nematic liquid crystal matrix using electrohydrodynamic convection (EHC) rolls. The asymmetric distortion of the molecular orientation around the particles results - for single particles - in a hopping motion from one EHC roll to the next and - for colloidal chains - in a caterpillar-like motion in the direction perpendicular to the roll axes. We demonstrate the use of colloidal chains as microtraction engines for the transport of various types of microcargo.
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