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Updated: Jun 13, 2026
06:50
Preparation and 3D Tracking of Catalytic Swimming Devices
Published on: July 1, 2016
Automated control of catalytic Janus micromotors
Max Sokolich1, David Rivas1, Zameer Hussain Shah1
1Department of Mechanical Engineering, University of Delaware, Newark, DE 19716, USA.
MRS Advances
|June 12, 2026
Summary
This study introduces automated control for Janus micromotors using electromagnetic fields and catalytic reactions. Precise navigation and complex trajectory following are achieved without human intervention.
Area of Science:
- Robotics and Nanotechnology
- Chemical Engineering
Background:
- Janus micromotors are microscale devices with potential applications in targeted delivery and sensing.
- Precise control of these motors is crucial for their effective utilization.
- Catalytic reactions, such as hydrogen peroxide decomposition, are commonly used for micromotor propulsion.
Purpose of the Study:
- To develop an accurate and automated control mechanism for Janus micromotors.
- To enable precise navigation and complex trajectory following of these micro-robots.
- To demonstrate autonomous magnetic field manipulation for micromotor guidance.
Main Methods:
- Utilizing fully controllable electromagnetic coils to generate precise magnetic fields.
- Applying magnetic torques to Janus micromotors for alignment and directed motion.
- Implementing control algorithms to guide micromotors to specific locations and along predefined trajectories.
- Leveraging the catalytic decomposition of hydrogen peroxide for propulsion.
Main Results:
- Demonstrated accurate and automated control of Janus micromotors.
- Achieved precise alignment and movement of particles via externally applied magnetic fields.
- Successfully guided micromotors along desired complex trajectories.
- Showcased autonomous operation without human intervention.
Conclusions:
- The developed system offers a robust platform for automated control of catalytically powered Janus micromotors.
- This technology enables precise manipulation of micro-robots for advanced applications.
- The findings pave the way for sophisticated microrobotic systems in various fields.
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