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A Chemotactic Colloidal Motor |
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| Authors: | Chang Zhou Dr. Ling Yang Dr. Yingjie Wu Prof. Mingcheng Yang Prof. Qiang He |
| Affiliation: | 1. Key Laboratory of Microsystems and Microstructures Manufacturing (Ministry of Education), School of Medicine and Health, Harbin Institute of Technology, No. 92 XiDaZhi Street, 150001 Harbin, P. R. China Wenzhou Institute, University of Chinese Academy of Sciences, 1 Jinlian Street, 325000 Wenzhou, P. R. China;2. Wenzhou Institute, University of Chinese Academy of Sciences, 1 Jinlian Street, 325000 Wenzhou, P. R. China;3. Key Laboratory of Microsystems and Microstructures Manufacturing (Ministry of Education), School of Medicine and Health, Harbin Institute of Technology, No. 92 XiDaZhi Street, 150001 Harbin, P. R. China;4. Beijing National Laboratory for Condensed Matter Physics and Laboratory of Soft Matter Physics, Institute of Physics, Chinese Academy of Sciences, 100190 Beijing, P. R. China School of Physical Sciences, University of Chinese Academy of Sciences, 100049 Beijing, P. R. China Songshan Lake Materials Laboratory, 523808 Dongguan, Guangdong, P. R. China |
| Abstract: | Chemotaxis plays a crucial role in the realization of various functions of human life such as fertilization, immune function, inflammatory response, regeneration processes, etc. Inspired by the natural chemotaxis, colloidal motors with chemotactic ability can realize intelligent sense and targeted navigation, which bring a revolutionary method to biomedical applications like precision medicine. However, the application in the biomedical field requires the colloidal motors with submicrometer scale, strong chemotactic ability and clear chemotactic mechanism. In this Concept article, we introduce the recent progress of chemotactic colloidal motors, covering the fundamental theory behind experimental advancements. Particularly, the torque-driven reorientation motion of the submicrometer-sized colloidal motors during chemotaxis is discussed, and also their underlying mechanism is proposed. With the continuous research on chemotactic colloidal motors, it is believed that the emerging chemotactic colloidal motors will broaden practical applications in the biomedical field. |
| Keywords: | chemotaxis colloidal motor diffusiophoresis reorientation self-propulsion |