Delivery and actuation of aerosolized microbots

Area of Science:

• Biomedical Engineering
• Nanotechnology
• Pulmonary Medicine

Background:

• Effective inhalation therapy for lung diseases relies on particle size for deep lung deposition.
• Conventional micro-robots (μBots) in the ideal size range are difficult to fabricate and lack functionality.
• Current limitations hinder the development of advanced μBot-based pulmonary treatments.

Purpose of the Study:

• To develop an innovative strategy for fabricating and deploying μBots for lung disease treatment.
• To overcome the challenges of size, structure, and function limitations in pulmonary μBots.
• To enable targeted drug delivery and mechanical work deep within the lungs using assembled μBots.

Main Methods:

• Aerosolization of individual building blocks for in situ assembly of μBots.
• In situ assembly of μBots within lung mimics to achieve desired size and functionality.
• Demonstration of μBot capabilities including translation, drug delivery, and mechanical work.

Main Results:

• Successfully demonstrated an approach to uncouple μBot size from structure and function.
• Achieved in situ assembly of functional μBots deep within lung mimics.
• Showcased μBots' potential for translation, drug delivery, and mechanical work in pulmonary applications.

Conclusions:

• The novel strategy allows for the creation of functional μBots irrespective of fabrication size limitations.
• This approach paves the way for treating various pulmonary diseases previously challenging for μBot-based therapies.
• In situ assembled μBots offer a promising new modality for advanced lung disease treatment.