Chiral shape fluctuations and the origin of chirality in cholesteric phases of DNA origamis
Lyotropic cholesteric liquid crystal phases are ubiquitously observed in biological and synthetic polymer solutions, characterized by a complex interplay between thermal fluctuations and entropic and enthalpic forces. The elucidation of the link between microscopic features and macroscopic chiral st...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
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American Association for the Advancement of Science
2020
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| _version_ | 1797099679613190144 |
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| author | Tortora, MMC Mishra, G Prešern, D Doye, JPK |
| author_facet | Tortora, MMC Mishra, G Prešern, D Doye, JPK |
| author_sort | Tortora, MMC |
| collection | OXFORD |
| description | Lyotropic cholesteric liquid crystal phases are ubiquitously observed in biological and synthetic polymer solutions, characterized by a complex interplay between thermal fluctuations and entropic and enthalpic forces. The elucidation of the link between microscopic features and macroscopic chiral structure, and of the relative roles of these competing contributions on phase organization, remains a topical issue. Here, we provide theoretical evidence of a previously unidentified mechanism of chirality amplification in lyotropic liquid crystals, whereby phase chirality is governed by fluctuation-stabilized helical deformations in the conformations of their constituent molecules. Our results compare favorably to recent experimental studies of DNA origami assemblies and demonstrate the influence of intramolecular mechanics on chiral supramolecular order, with potential implications for a broad class of experimentally relevant colloidal systems. |
| first_indexed | 2024-03-07T05:27:06Z |
| format | Journal article |
| id | oxford-uuid:e0f0b0de-35fc-4682-9e01-60b2df28fb38 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T05:27:06Z |
| publishDate | 2020 |
| publisher | American Association for the Advancement of Science |
| record_format | dspace |
| spelling | oxford-uuid:e0f0b0de-35fc-4682-9e01-60b2df28fb382022-03-27T09:50:55ZChiral shape fluctuations and the origin of chirality in cholesteric phases of DNA origamisJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:e0f0b0de-35fc-4682-9e01-60b2df28fb38EnglishSymplectic ElementsAmerican Association for the Advancement of Science2020Tortora, MMCMishra, GPrešern, DDoye, JPKLyotropic cholesteric liquid crystal phases are ubiquitously observed in biological and synthetic polymer solutions, characterized by a complex interplay between thermal fluctuations and entropic and enthalpic forces. The elucidation of the link between microscopic features and macroscopic chiral structure, and of the relative roles of these competing contributions on phase organization, remains a topical issue. Here, we provide theoretical evidence of a previously unidentified mechanism of chirality amplification in lyotropic liquid crystals, whereby phase chirality is governed by fluctuation-stabilized helical deformations in the conformations of their constituent molecules. Our results compare favorably to recent experimental studies of DNA origami assemblies and demonstrate the influence of intramolecular mechanics on chiral supramolecular order, with potential implications for a broad class of experimentally relevant colloidal systems. |
| spellingShingle | Tortora, MMC Mishra, G Prešern, D Doye, JPK Chiral shape fluctuations and the origin of chirality in cholesteric phases of DNA origamis |
| title | Chiral shape fluctuations and the origin of chirality in cholesteric phases of DNA origamis |
| title_full | Chiral shape fluctuations and the origin of chirality in cholesteric phases of DNA origamis |
| title_fullStr | Chiral shape fluctuations and the origin of chirality in cholesteric phases of DNA origamis |
| title_full_unstemmed | Chiral shape fluctuations and the origin of chirality in cholesteric phases of DNA origamis |
| title_short | Chiral shape fluctuations and the origin of chirality in cholesteric phases of DNA origamis |
| title_sort | chiral shape fluctuations and the origin of chirality in cholesteric phases of dna origamis |
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