Recent Process in Microrobots: From Propulsion to Swarming for Biomedical Applications

Area of Science:

• Biomedical Engineering
• Robotics
• Nanotechnology

Background:

• Robots are increasingly used in biomedicine, with micro/nanoscale robots offering enhanced precision for drug delivery and minimally invasive surgery.
• Nature's biological motors inspire the design of sophisticated, programmable microrobots for various biomedical tasks.
• Key considerations for biomedical microrobots include biocompatibility, efficient transport, and controllable locomotion within the human body.

Purpose of the Study:

• To review and categorize different types of microrobot propulsion systems for biomedical applications.
• To outline the features, benefits, and challenges associated with various microrobot designs.
• To discuss the potential future development paths for biomedical microrobots.

Main Methods:

• Categorization of microrobots based on four primary propulsion mechanisms: magnetic, acoustic, chemical/optical, and hybrid.
• Analysis of the locomotion principles and characteristics of each propulsion type.
• Review of existing and potential applications in the biomedical field.

Main Results:

• Magnetic, acoustic, chemical/optical, and hybrid propulsion methods offer distinct advantages for microrobot control and application.
• Successful microrobot implementation requires addressing biocompatibility, transportation efficiency, and precise motion control in vivo.
• Each propulsion type presents unique benefits for specific biomedical tasks, such as targeted drug delivery and bio-imaging.

Conclusions:

• Advancements in microrobot technology, driven by diverse propulsion strategies, hold significant promise for revolutionizing medical treatments.
• Further research into biocompatibility and control mechanisms is crucial for realizing the full potential of these devices.
• The development of microrobots represents a rapidly growing field with substantial potential for future biomedical innovation.