Related Experiment Video
Updated: May 17, 2026
06:02
Multi-timescale Microscopy Methods for the Characterization of Fluorescently-labeled Microbubbles for Ultrasound-Triggered Drug Release
Published on: June 12, 2021
Scaled-Up Production of Monodisperse, Dual Layer Microbubbles Using Multi-Array Microfluidic Module for Medical
Michael R Kendall1, David Bardin, Roger Shih
1Department of Biomedical Engineering, University of California-Irvine, 3406 Engineering Hall, Irvine, CA, 92697 (USA).
Bubble Science Engineering and Technology
|October 11, 2012
Summary
Researchers developed a scalable microfluidic method for producing uniform multilayer microbubbles. This breakthrough enhances ultrasound contrast and targeted drug delivery for medical applications.
Area of Science:
- Biomedical Engineering
- Nanotechnology
- Fluid Dynamics
Background:
- Uniform-sized multilayer microbubbles offer improved ultrasound contrast and targeted therapeutic delivery.
- Current microfluidic production rates are too low for clinical translation.
Purpose of the Study:
- To scale up the production of monodisperse dual-layered microbubbles using a novel multi-array microfluidic module.
- To achieve high-throughput production while maintaining microbubble size consistency.
Main Methods:
- Utilized a multi-array microfluidic module with hydrodynamic flow-focusing orifices (4 or 8 channels).
- Operated the system in a high-speed regime to analyze microbubble production rates and size distribution.
Main Results:
- Achieved production rates of 1.34 × 10^5 Hz in an 8-channel configuration.
- Produced microbubbles with diameters ranging from 18.6-22.3 μm at high production speeds.
- Maintained a mean pooled polydispersity index under 9%, indicating high uniformity.
Conclusions:
- Demonstrated the feasibility of microfluidic scale-up for high-output production of uniform multilayer microbubbles.
- The developed method shows potential for clinical applications requiring consistent microbubble generation.
