ArticleScience advances2020
All twist and no bend makes raft edges splay: Spontaneous curvature of domain edges in colloidal membranes.
Article in Science advances, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Confinement-induced chirality in phase-separated achiral polymer solutions.Science advances · 2025Article
- Controlling the shape and topology of two-component colloidal membranes.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Geodesic fibrations for packing diabolic domains.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- Gnomonious projections for bend-free textures: thoughts on the splay-twist phase.Proceedings. Mathematical, physical, and engineering sciences · 2020Article
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Using theory and experiments, we study the interface between two immiscible domains in a colloidal membrane composed of rigid rods of different lengths. Geometric considerations of rigid rod packing imply that a domain of sufficiently short rods in a background membrane of long rods is more susceptible to twist than the inverse structure, a long-rod domain in a short-rod membrane. The midplane tilt at the interdomain edge forces splay, which, in turn, manifests as spontaneous edge curvature with energetics controlled by the length asymmetry of constituent rods. A thermodynamic model of such tilt-curvature coupling at interdomain edges explains a number of experimental observations, including annularly shaped long-rod domains, and a nonmonotonic dependence of edge twist on domain radius. Our work shows how coupling between orientational and compositional degrees of freedom in two-dimensional fluids gives rise to complex shapes of fluid domains, analogous to shape transitions in 3D fluid vesicles.
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Registered trials
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