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Updated: May 9, 2026
07:03
Bilayer Microfluidic Device for Combinatorial Plug Production
Published on: December 1, 2023
Behavior of liquid plugs at bifurcations in a microfluidic tree network
Nadia Vertti Quintero1, Yu Song, Paul Manneville
1Hydrodynamics Laboratory, CNRS UMR7646, École Polytechnique, 91128 Palaiseau, France.
Biomicrofluidics
|July 23, 2013
Summary
Liquid plugs in microfluidic networks divide at bifurcations. Their behavior follows a universal curve determined by the network
Area of Science:
- Fluid dynamics
- Microfluidics
- Complex flows
Background:
- Flows in complex geometries like porous media often involve liquid plugs within air bubbles.
- Microfluidic devices offer controlled environments to model these intricate flow behaviors.
Purpose of the Study:
- To investigate the behavior of wetting liquid plugs as they navigate bifurcating micro-channel networks.
- To analyze the plug division process at each bifurcation point.
Main Methods:
- Studying liquid plug flow in a well-defined bifurcating microfluidic network.
- Identifying key interfacial events during plug division.
- Analyzing the timing and curvature variations of these events.
Main Results:
- Key events during plug division include interface curvature changes and new interface formation.
- The timing and amplitude of these events exhibit predictable patterns.
- All analyzed events collapse onto a master curve governed by the network's geometry.
Conclusions:
- The division of liquid plugs in branching micro-networks is a geometrically dictated process.
- These findings support the development of event-driven models for complex microfluidic flows.
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