Chiral active particles are sensitive reporters to environmental geometry
Abstract Chiral active particles (CAPs) are self-propelling particles that break time-reversal symmetry by orbiting or spinning, leading to intriguing behaviors. Here, we examined the dynamics of CAPs moving in 2D lattices of disk obstacles through active Brownian dynamics simulations and granular e...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-02-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-45531-5 |
| _version_ | 1827326778790641664 |
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| author | Chung Wing Chan Daihui Wu Kaiyao Qiao Kin Long Fong Zhiyu Yang Yilong Han Rui Zhang |
| author_facet | Chung Wing Chan Daihui Wu Kaiyao Qiao Kin Long Fong Zhiyu Yang Yilong Han Rui Zhang |
| author_sort | Chung Wing Chan |
| collection | DOAJ |
| description | Abstract Chiral active particles (CAPs) are self-propelling particles that break time-reversal symmetry by orbiting or spinning, leading to intriguing behaviors. Here, we examined the dynamics of CAPs moving in 2D lattices of disk obstacles through active Brownian dynamics simulations and granular experiments with grass seeds. We find that the effective diffusivity of the CAPs is sensitive to the structure of the obstacle lattice, a feature absent in achiral active particles. We further studied the transport of CAPs in obstacle arrays under an external field and found a reentrant directional locking effect, which can be used to sort CAPs with different activities. Finally, we demonstrated that parallelogram lattices of obstacles without mirror symmetry can separate clockwise and counter-clockwise CAPs. The mechanisms of the above three novel phenomena are qualitatively explained. As such, our work provides a basis for designing chirality-based tools for single-cell diagnosis and separation, and active particle-based environmental sensors. |
| first_indexed | 2024-03-07T14:50:26Z |
| format | Article |
| id | doaj.art-49934052c8f84b13b506919fce1a6e20 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-07T14:50:26Z |
| publishDate | 2024-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-49934052c8f84b13b506919fce1a6e202024-03-05T19:43:14ZengNature PortfolioNature Communications2041-17232024-02-0115111110.1038/s41467-024-45531-5Chiral active particles are sensitive reporters to environmental geometryChung Wing Chan0Daihui Wu1Kaiyao Qiao2Kin Long Fong3Zhiyu Yang4Yilong Han5Rui Zhang6Department of Physics, The Hong Kong University of Science and TechnologyDepartment of Physics, The Hong Kong University of Science and TechnologyDepartment of Physics, The Hong Kong University of Science and TechnologyDepartment of Physics, The Hong Kong University of Science and TechnologyDepartment of Physics, The Hong Kong University of Science and TechnologyDepartment of Physics, The Hong Kong University of Science and TechnologyDepartment of Physics, The Hong Kong University of Science and TechnologyAbstract Chiral active particles (CAPs) are self-propelling particles that break time-reversal symmetry by orbiting or spinning, leading to intriguing behaviors. Here, we examined the dynamics of CAPs moving in 2D lattices of disk obstacles through active Brownian dynamics simulations and granular experiments with grass seeds. We find that the effective diffusivity of the CAPs is sensitive to the structure of the obstacle lattice, a feature absent in achiral active particles. We further studied the transport of CAPs in obstacle arrays under an external field and found a reentrant directional locking effect, which can be used to sort CAPs with different activities. Finally, we demonstrated that parallelogram lattices of obstacles without mirror symmetry can separate clockwise and counter-clockwise CAPs. The mechanisms of the above three novel phenomena are qualitatively explained. As such, our work provides a basis for designing chirality-based tools for single-cell diagnosis and separation, and active particle-based environmental sensors.https://doi.org/10.1038/s41467-024-45531-5 |
| spellingShingle | Chung Wing Chan Daihui Wu Kaiyao Qiao Kin Long Fong Zhiyu Yang Yilong Han Rui Zhang Chiral active particles are sensitive reporters to environmental geometry Nature Communications |
| title | Chiral active particles are sensitive reporters to environmental geometry |
| title_full | Chiral active particles are sensitive reporters to environmental geometry |
| title_fullStr | Chiral active particles are sensitive reporters to environmental geometry |
| title_full_unstemmed | Chiral active particles are sensitive reporters to environmental geometry |
| title_short | Chiral active particles are sensitive reporters to environmental geometry |
| title_sort | chiral active particles are sensitive reporters to environmental geometry |
| url | https://doi.org/10.1038/s41467-024-45531-5 |
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