Automatic Manipulation of Magnetically Actuated Helical Microswimmers in Static Environments

Area of Science:

• Biomedical Engineering
• Robotics
• Control Systems

Background:

• Electromagnetically actuated microswimmers offer minimally invasive access to confined biomedical environments.
• Autonomous guidance of microswimmers requires sophisticated path planning and motion control, which remain challenging areas.
• Current automatic manipulation systems for microswimmers are underdeveloped.

Purpose of the Study:

• To develop an automatic manipulation system for magnetically actuated helical microswimmers in static environments.
• To enable autonomous navigation and precise control of microswimmers for potential biomedical applications.

Main Methods:

• A mapper module processes images using morphological transformations to identify free and obstacle spaces.
• A global path planning algorithm finds an obstacle-free path from a starting point to a goal.
• A closed-loop motion controller guides the microswimmers along the planned trajectory.

Main Results:

• The proposed system successfully demonstrated automatic manipulation of helical microswimmers.
• Experimental validation confirmed the effectiveness of the mapper, path planner, and motion controller.
• The system provides a foundation for autonomous microswimmer control in complex scenarios.

Conclusions:

• The developed automatic manipulation system enhances the control capabilities of magnetically actuated microswimmers.
• This work represents a significant step towards realizing microswimmer applications in targeted medical treatments like drug delivery and therapy.
• Further research can build upon this system for advanced micromanipulation tasks.