Magnetic matchstick micromotors with switchable motion modes
Xiaoliang Zhang a, Wenqing Xie a, Huaguang Wang *a（王华光） and Zexin Zhang *ab（张泽新）
a College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China.
b Center for Soft Condensed Matter Physics and Interdisciplinary Research, and Institute for Advanced Study, Soochow University, Suzhou, 215123, China
Chem. Commun., 2021, 57, 3797--3800
The ability to in situ tune various motion modes of micromotors is challenging, yet critical for any practical applications of micromotors in complex microenvironments. Here, we designed and synthesized magnetic matchstick micromotors with two motion modes, a persistent rotational motion and a straight-line motion, that can be readily and reversibly switched in situ by an external magnetic field. Such micromotors with switchable motion modes hold considerable promise for local environment sensing and probing at the microscale.