Light-Programmable Assemblies of Isotropic Micromotors
“Life-like” nonequilibrium assemblies are of increasing significance, but suffering from limited steerability as they are generally based on micro/nanomotors with inherent asymmetry in chemical composition or geometry, of which the vigorous random Brownian rotations disturb the local interactions. H...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Association for the Advancement of Science (AAAS)
2022-01-01
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| Series: | Research |
| Online Access: | http://dx.doi.org/10.34133/2022/9816562 |
| _version_ | 1797281161153609728 |
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| author | Shengping Che Jianhua Zhang Fangzhi Mou Xia Guo Joshua E. Kauffman Ayusman Sen Jianguo Guan |
| author_facet | Shengping Che Jianhua Zhang Fangzhi Mou Xia Guo Joshua E. Kauffman Ayusman Sen Jianguo Guan |
| author_sort | Shengping Che |
| collection | DOAJ |
| description | “Life-like” nonequilibrium assemblies are of increasing significance, but suffering from limited steerability as they are generally based on micro/nanomotors with inherent asymmetry in chemical composition or geometry, of which the vigorous random Brownian rotations disturb the local interactions. Here, we demonstrate that isotropic photocatalytic micromotors, due to the persistent phoretic flow from the illuminated to shadowed side irrespective of their Brownian rotations, experience light-programmable local interactions (reversibly from attraction to repulsion and/or alignment) depending on the direction of the incident lights. Thus, they can be organized into a variety of tunable nonequilibrium assemblies, such as apolar solids (i.e., immobile colloidal crystal), polar liquids (i.e., phototactic colloidal stream), and polar solids (i.e., phototactic colloidal crystal), which can further be “cut” into a predesigned pattern by utilizing the switching motor-motor interactions at superimposed-light edges. This work facilitates the development of active matters and motile functional microdevices. |
| first_indexed | 2024-03-07T16:52:36Z |
| format | Article |
| id | doaj.art-f20d47a95a8541bb8457988436dff9ad |
| institution | Directory Open Access Journal |
| issn | 2639-5274 |
| language | English |
| last_indexed | 2024-03-07T16:52:36Z |
| publishDate | 2022-01-01 |
| publisher | American Association for the Advancement of Science (AAAS) |
| record_format | Article |
| series | Research |
| spelling | doaj.art-f20d47a95a8541bb8457988436dff9ad2024-03-03T04:43:46ZengAmerican Association for the Advancement of Science (AAAS)Research2639-52742022-01-01202210.34133/2022/9816562Light-Programmable Assemblies of Isotropic MicromotorsShengping Che0Jianhua Zhang1Fangzhi Mou2Xia Guo3Joshua E. Kauffman4Ayusman Sen5Jianguo Guan6State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, ChinaState Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China; Department of Chemistry, The Pennsylvania State University, University Park, PA 16802, USAState Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, ChinaState Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, ChinaDepartment of Chemistry, The Pennsylvania State University, University Park, PA 16802, USADepartment of Chemistry, The Pennsylvania State University, University Park, PA 16802, USAState Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China“Life-like” nonequilibrium assemblies are of increasing significance, but suffering from limited steerability as they are generally based on micro/nanomotors with inherent asymmetry in chemical composition or geometry, of which the vigorous random Brownian rotations disturb the local interactions. Here, we demonstrate that isotropic photocatalytic micromotors, due to the persistent phoretic flow from the illuminated to shadowed side irrespective of their Brownian rotations, experience light-programmable local interactions (reversibly from attraction to repulsion and/or alignment) depending on the direction of the incident lights. Thus, they can be organized into a variety of tunable nonequilibrium assemblies, such as apolar solids (i.e., immobile colloidal crystal), polar liquids (i.e., phototactic colloidal stream), and polar solids (i.e., phototactic colloidal crystal), which can further be “cut” into a predesigned pattern by utilizing the switching motor-motor interactions at superimposed-light edges. This work facilitates the development of active matters and motile functional microdevices.http://dx.doi.org/10.34133/2022/9816562 |
| spellingShingle | Shengping Che Jianhua Zhang Fangzhi Mou Xia Guo Joshua E. Kauffman Ayusman Sen Jianguo Guan Light-Programmable Assemblies of Isotropic Micromotors Research |
| title | Light-Programmable Assemblies of Isotropic Micromotors |
| title_full | Light-Programmable Assemblies of Isotropic Micromotors |
| title_fullStr | Light-Programmable Assemblies of Isotropic Micromotors |
| title_full_unstemmed | Light-Programmable Assemblies of Isotropic Micromotors |
| title_short | Light-Programmable Assemblies of Isotropic Micromotors |
| title_sort | light programmable assemblies of isotropic micromotors |
| url | http://dx.doi.org/10.34133/2022/9816562 |
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