A method to prevent clogging and clustering in microfluidic systems using microbubble streaming

Area of Science:

• Fluid dynamics
• Microfluidics
• Biotechnology

Background:

• Microfluidic devices face significant challenges with channel clogging and particle clustering.
• These issues impede device functionality and limit applications in areas like lab-on-a-chip systems.

Purpose of the Study:

• To develop and validate an innovative anti-clogging strategy for microchannels.
• To investigate the efficacy of three-dimensional (3D) microbubble streaming in preventing blockages and particle aggregation.

Main Methods:

• Controlled activation of microbubbles near channel constrictions to induce microstreaming.
• Experimental validation of the microstreaming phenomena and its impact on clogging and clustering.
• Statistical analysis of the anti-clogging technique's performance across various scenarios.

Main Results:

• Microbubble-induced microstreaming effectively inhibited arch formation at constrictions.
• Particle clusters were disintegrated in real-time, preventing channel blockages.
• The developed control system demonstrated versatility for different lab-on-a-chip applications.

Conclusions:

• 3D microbubble streaming presents a robust solution for microchannel clogging and clustering.
• The technique enhances the reliability and functionality of microfluidic systems.
• The adaptable control system broadens the applicability of this anti-clogging strategy.