Multiphase flow in microfluidic systems --control and applications of droplets and interfaces

Area of Science:

• Leverages micro- and nanotechnology for colloidal and interfacial systems analysis.

Background:

• Multiphase flow in micro/nanochannels involves immiscible fluids separated by interfaces.
• Small-volume confinement and multiphase coexistence offer unique system characteristics.
• Multiphase flow exhibits complex behavior but offers significant practical advantages over single-phase flow.

Purpose of the Study:

• To discuss methods for controlling multiphase flow in microfluidic systems.
• To explore the generation of micro/nano-droplets (or bubbles) and stable stratified interfaces.
• To summarize applications of these controlled droplets and interfaces within microchannels.

Main Methods:

• Utilizes micro- and nanotechnology tools.
• Focuses on controlling fluid dynamics within micro- and nanochannels.
• Investigates methods for generating specific multiphase flow structures.

Main Results:

• Demonstrates control over multiphase flow to produce micro/nano-droplets or bubbles.
• Achieves stable stratified interfaces between immiscible fluid phases.
• Summarizes the practical applications stemming from these controlled fluidic structures.

Conclusions:

• Microfluidic and nanofluidic techniques provide essential tools for manipulating multiphase systems.
• Controlling multiphase flow enables the precise generation of droplets and interfaces.
• These controlled structures have broad applications in various scientific and technological fields.