Toward Wireless Implantable Robotic Systems Driven by Magnetic Field for Personalized Therapy

Area of Science:

• Biomedical Engineering
• Materials Science
• Robotics

Background:

• Robotic materials are crucial for small-scale sensing and actuation, especially in healthcare.
• Magnetically responsive materials offer wireless solutions for miniaturized medical devices.
• Challenges include integration, miniaturization, biocompatibility, and closed-loop therapy for implantable systems.

Purpose of the Study:

• To highlight advancements in magnetic materials for wireless sensing, actuation, and energy harvesting in implantable robotic systems.
• To survey magnetic materials for drug delivery modules, evaluating performance metrics.
• To discuss future directions for clinical translation of these technologies.

Main Methods:

• Literature review of magnetic materials and magnetically actuated devices.
• Survey of magnetic materials in drug delivery pumps and valves.
• Evaluation of sensing and energy harvesting functions of magnetic materials.

Main Results:

• Magnetic materials enable wireless drug delivery, sensing, and energy harvesting for implantable devices.
• Performance is evaluated based on actuation field, biocompatibility, and location suitability.
• Integration with other stimuli-responsive materials enhances sensing capabilities.

Conclusions:

• Magnetically responsive materials show significant potential for personalized medicine and closed-loop therapy.
• Further development is needed in miniaturization, safety, and long-term in vivo stability.
• These advancements pave the way for next-generation minimally invasive robotic implants.