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Related Experiment Video

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PoroFluidics: deterministic fluid control in porous microfluidics.

Zhongzheng Wang1, Louis Jun Ye Ong1,2,3, Yixiang Gan4,5

  • 1School of Mechanical, Medical and Process Engineering, Faculty of Engineering, Queensland University of Technology, QLD 4001, Australia. yichin.toh@qut.edu.au.

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|August 6, 2024
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Summary
This summary is machine-generated.

This study introduces poroFluidics, a design framework for microfluidic devices with porous structures. It enables deterministic control over multi-phase fluid transport by considering fluid and solid properties for consistent flow patterns.

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Area of Science:

  • Engineering
  • Physics
  • Materials Science

Background:

  • Microfluidic devices with porous structures offer unique fluid manipulation capabilities.
  • Challenges exist in understanding design principles for consistent flow patterns in these devices.

Purpose of the Study:

  • To present a design framework for microfluidic devices with porous architectures (poroFluidics).
  • To achieve deterministic control of multi-phase fluid transport processes.

Main Methods:

  • Quantitative and mechanistic analyses of gas-liquid-solid interface phenomena.
  • Incorporation of fluid properties (viscosity, interfacial tension, wettability) and solid properties (manufacture resolution).
  • Experimental validation and numerical simulations.

Main Results:

  • Demonstrated consistent flow in porous media by integrating fluid and solid properties.
  • Achieved desired spatial and temporal fluid invasion sequences.
  • Identified control of preferential flow pathways via solid geometry, flow conditions, or fluid/solid properties.

Conclusions:

  • The developed design framework enables precise, multifunctional, and dynamic control of multi-phase transport in engineered porous media.
  • Facilitates wider applications of microfluidic devices with porous architectures.