Acoustically Powered Magnetic Microrobots for Cellular Manipulation

Area of Science:

• Robotics and Biomedical Engineering
• Microscale Systems
• Cellular Manipulation Technologies

Background:

• Developing precise tools for micro- and nanoscale object manipulation, especially cells, remains a significant challenge.
• Existing systems lack a combination of practical features like speed, precision, bio-orthogonality, and high-throughput control.
• The need for advanced micromanipulation tools is critical for biomedical applications.

Purpose of the Study:

• To demonstrate an acoustically powered microrobot system with advanced capabilities for microscale object manipulation.
• To address the limitations of current microrobotic systems in speed, precision, and control.
• To showcase the potential of these microrobots in biomedical applications, including cellular manipulation and targeted delivery.

Main Methods:

• Development of acoustically powered microrobots.
• Steering the microrobots using an applied magnetic field.
• Utilizing acoustic propulsion for high-speed, precise motion and short-range attractive forces.
• Testing bio-compatibility and cargo delivery capabilities.

Main Results:

• Acoustically powered microrobots demonstrated high speed, precision, and tunable control.
• The microrobots exhibited bio-orthogonality and effectiveness in various liquid media.
• Successful cargo pickup and delivery to individual cells were achieved.
• Cellular manipulation and targeted delivery applications were demonstrated.

Conclusions:

• Acoustic microrobots are bio-compatible and suitable for cellular manipulation.
• The developed system offers a practical solution for high-throughput microscale object handling.
• This technology holds significant promise for advancing biomedical applications and cell-based research.