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Updated: May 25, 2026

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Three-dimensional fit-to-flow microfluidic assembly.

Arnold Chen1, Tingrui Pan

  • 1Micro-Nano Innovations (MiNI) Laboratory, Biomedical Engineering, University of California, Davis, California 95616, USA.

Biomicrofluidics
|January 26, 2012
PubMed
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A new modular assembly strategy enables on-demand, three-dimensional (3D) microfluidic integration for biological and clinical applications. This system offers easy assembly, secure alignment, and reconfigurable fluid flow, overcoming previous technical challenges.

Area of Science:

  • Microfluidics
  • Biotechnology
  • Systems Engineering

Background:

  • Three-dimensional (3D) microfluidics offers potential for advanced biological and clinical applications.
  • Challenges in system-level packaging, assembly, alignment, and world-to-chip interfaces hinder 3D microfluidic integration.
  • Existing microfluidic systems often lack modularity and reconfigurability for complex fluidic networks.

Purpose of the Study:

  • To develop a modular system-level assembly strategy for on-demand 3D microfluidic integration.
  • To address persistent technical challenges in packaging, assembly, alignment, and interfacing for 3D microfluidic devices.
  • To enable versatile, digitalized, and multitasking fluidic manipulations for biological and clinical applications.

Main Methods:

  • Extended the established fit-to-flow (F2F) world-to-chip interconnection scheme into a complete system-level assembly strategy.

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Last Updated: May 25, 2026

Patterning of Microorganisms and Microparticles through Sequential Capillarity-assisted Assembly
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Published on: November 4, 2021

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Transforming Static Barrier Tissue Models into Dynamic Microphysiological Systems

Published on: February 16, 2024

Three-Dimensionally Printed Microfluidic Cross-flow System for Ultrafiltration/Nanofiltration Membrane Performance Testing
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Published on: February 13, 2016

  • Utilized a modular F2F assembly comprising an interfacial chip, pluggable alignment modules, and monolithic microfluidic channel layers.
  • Employed monolithic laser-micromachining for fabricating standardized, mass-producible, pluggable polymeric modules.

    • Main Results:

    • Successfully assembled convoluted 3D microfluidic networks with reconfigurable fluid flow capabilities.
    • Achieved facile and secure alignment between microfluidic chips and alignment modules via interlocking features, with an average misalignment of 45 μm.
    • Demonstrated comparable sealing performance to conventional single-layer devices, with an average leakage pressure of 38.47 kPa.
    • Validated modular reconfigurability by re-routing microfluidic flows through interchangeable modular microchannel layers.

    Conclusions:

    • The developed modular F2F assembly strategy effectively addresses challenges in 3D microfluidic integration.
    • The system allows for easy assembly, secure alignment, and reconfigurable fluid flow, akin to building blocks.
    • This approach facilitates the translation of microfluidic toolsets for diverse biological and clinical applications.