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- W2890002309 abstract "The ability to dictate colloid motion is an important challenge in fields ranging from materials science to living systems. Here, by embedding energy landscapes in confined nematic liquid crystals, we design a versatile platform to define colloidal migration. This is achieved by placing a wavy wall, with alternating hills and wells, in nematic liquid crystals, to impose a smooth elastic energy field with alternating splay and bend distortions. This domain generates (meta) stable loci that act as attractors and unstable loci that repel colloids over distances large compared to the colloid radius. Energy gradients in the vicinity of these loci are exploited to dictate colloid trajectories. We demonstrate several aspects of this control, by studying transitions between defect configurations, propelling particles along well defined paths and exploiting multistable systems to send particles to particular sites within the domain. Such tailored landscapes have promise in reconfigurable systems and in microrobotics applications" @default.
- W2890002309 created "2018-09-27" @default.
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- W2890002309 date "2018-09-21" @default.
- W2890002309 modified "2023-09-30" @default.
- W2890002309 title "Tunable colloid trajectories in nematic liquid crystals near wavy walls" @default.
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- W2890002309 doi "https://doi.org/10.1038/s41467-018-06054-y" @default.
- W2890002309 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6155032" @default.
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