ArticleProceedings of the National Academy of Sciences of the United States of America2015
Nanoparticle self-assembly at the interface of liquid crystal droplets.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- Nanoparticle-Induced Interfacial Director Straining Enables Ultrasensitive Molecular Detection at Microfluidic Liquid Crystal Interfaces.ACS applied materials & interfaces · 2026Article
- Active transformations of topological structures in light-driven nematic disclination networks.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Logic operations with active topological defects.Science advances · 2022Article
- Relaxation dynamics in bio-colloidal cholesteric liquid crystals confined to cylindrical geometry.Nature communications · 2020Article
- Nucleation and shape dynamics of model nematic tactoids around adhesive colloids.The Journal of chemical physics · 2020Article
- Self-organizing motors divide active liquid droplets.Proceedings of the National Academy of Sciences of the United States of America · 2019Article
- Shaping nanoparticle fingerprints at the interface of cholesteric droplets.Science advances · 2018Article
- Phase Transition-Driven Nanoparticle Assembly in Liquid Crystal Droplets.Nanomaterials (Basel, Switzerland) · 2018Article
- Interplay of structure, elasticity, and dynamics in actin-based nematic materials.Proceedings of the National Academy of Sciences of the United States of America · 2018Article
- Segregation of liquid crystal mixtures in topological defects.Nature communications · 2017Article
- Controlled deformation of vesicles by flexible structured media.Science advances · 2016Article
- Light manipulation of nanoparticles in arrays of topological defects.Scientific reports · 2016Article
- Blue-phase liquid crystal droplets.Proceedings of the National Academy of Sciences of the United States of America · 2015Article
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7 authors.
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Abstract
Nanoparticles adsorbed at the interface of nematic liquid crystals are known to form ordered structures whose morphology depends on the orientation of the underlying nematic field. The origin of such structures is believed to result from an interplay between the liquid crystal orientation at the particles' surface, the orientation at the liquid crystal's air interface, and the bulk elasticity of the underlying liquid crystal. In this work, we consider nanoparticle assembly at the interface of nematic droplets. We present a systematic study of the free energy of nanoparticle-laden droplets in terms of experiments and a Landau-de Gennes formalism. The results of that study indicate that, even for conditions under which particles interact only weakly at flat interfaces, particles aggregate at the poles of bipolar droplets and assemble into robust, quantized arrangements that can be mapped onto hexagonal lattices. The contributions of elasticity and interfacial energy corresponding to different arrangements are used to explain the resulting morphologies, and the predictions of the model are shown to be consistent with experimental observations. The findings presented here suggest that particle-laden liquid crystal droplets could provide a unique and versatile route toward building blocks for hierarchical materials assembly.
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