Morphogenesis of a chiral liquid crystalline droplet with topological reconnection and Lehmann rotation

Abstract Morphogenesis is a hierarchical phenomenon that produces various macroscopic structures in living organisms, with high reproducibility. This study demonstrates that such structural formation can also be observed in a chiral liquid crystalline droplet under a temperature gradient. Through sp...

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Main Authors: Jun Yoshioka, Yuki Ito, Koji Fukao
Format: Article
Language:English
Published: Nature Portfolio 2024-03-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-024-58054-2
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author Jun Yoshioka
Yuki Ito
Koji Fukao
author_facet Jun Yoshioka
Yuki Ito
Koji Fukao
author_sort Jun Yoshioka
collection DOAJ
description Abstract Morphogenesis is a hierarchical phenomenon that produces various macroscopic structures in living organisms, with high reproducibility. This study demonstrates that such structural formation can also be observed in a chiral liquid crystalline droplet under a temperature gradient. Through specific control of the temperature change process, we were able to switch the final structure obtained as a result of the formation via the appearance and reconnection of loop defects in the transient state during structure formation. Simultaneously, the existence of the gradient resulted in a characteristic rotational phenomenon called Lehmann rotation, which was prominently induced in the transient state. By demonstrating three-dimensional measurements of the flow field, we revealed the existence of Marangoni convection in the state. Consequently, it is indicated that the convection results in high-speed Lehmann rotation and large structural deformation with topological changes, thereby playing a significant role in the structure formation.
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spelling doaj.art-8acc9d30670744cdb3e25184b12701402024-03-31T11:18:12ZengNature PortfolioScientific Reports2045-23222024-03-0114111810.1038/s41598-024-58054-2Morphogenesis of a chiral liquid crystalline droplet with topological reconnection and Lehmann rotationJun Yoshioka0Yuki Ito1Koji Fukao2Department of Physical Sciences, Ritsumeikan UniversityDepartment of Physical Sciences, Ritsumeikan UniversityDepartment of Physical Sciences, Ritsumeikan UniversityAbstract Morphogenesis is a hierarchical phenomenon that produces various macroscopic structures in living organisms, with high reproducibility. This study demonstrates that such structural formation can also be observed in a chiral liquid crystalline droplet under a temperature gradient. Through specific control of the temperature change process, we were able to switch the final structure obtained as a result of the formation via the appearance and reconnection of loop defects in the transient state during structure formation. Simultaneously, the existence of the gradient resulted in a characteristic rotational phenomenon called Lehmann rotation, which was prominently induced in the transient state. By demonstrating three-dimensional measurements of the flow field, we revealed the existence of Marangoni convection in the state. Consequently, it is indicated that the convection results in high-speed Lehmann rotation and large structural deformation with topological changes, thereby playing a significant role in the structure formation.https://doi.org/10.1038/s41598-024-58054-2
spellingShingle Jun Yoshioka
Yuki Ito
Koji Fukao
Morphogenesis of a chiral liquid crystalline droplet with topological reconnection and Lehmann rotation
Scientific Reports
title Morphogenesis of a chiral liquid crystalline droplet with topological reconnection and Lehmann rotation
title_full Morphogenesis of a chiral liquid crystalline droplet with topological reconnection and Lehmann rotation
title_fullStr Morphogenesis of a chiral liquid crystalline droplet with topological reconnection and Lehmann rotation
title_full_unstemmed Morphogenesis of a chiral liquid crystalline droplet with topological reconnection and Lehmann rotation
title_short Morphogenesis of a chiral liquid crystalline droplet with topological reconnection and Lehmann rotation
title_sort morphogenesis of a chiral liquid crystalline droplet with topological reconnection and lehmann rotation
url https://doi.org/10.1038/s41598-024-58054-2
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