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Updated: Jun 3, 2026

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Algorithm for a microfluidic assembly line.

Tobias M Schneider1, Shreyas Mandre, Michael P Brenner

  • 1School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA.

Physical Review Letters
|March 17, 2011
PubMed
Summary
This summary is machine-generated.

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Microfluidic technology enables the assembly of complex 3D structures. A sequential algorithm using controlled flow rates can manufacture arbitrary structures, including the English alphabet, from simple particles.

Area of Science:

  • Microfluidics and Nanotechnology
  • Materials Science and Engineering
  • Robotics and Automation

Background:

  • Microfluidic technology offers precise control over fluid flows at the microscale.
  • This control opens new avenues for fabricating complex microscale structures.
  • Existing assembly methods face limitations in creating arbitrary 3D designs.

Purpose of the Study:

  • To analyze and identify effective algorithms for assembling arbitrary microscale structures.
  • To demonstrate the capability of a sequential assembly algorithm for 3D fabrication.
  • To showcase the construction of complex patterns, such as the English alphabet, using microfluidics.

Main Methods:

  • Analysis of various microfluidic assembly algorithms.
  • Development and implementation of a sequential assembly algorithm.

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Related Experiment Videos

Last Updated: Jun 3, 2026

Patterning of Microorganisms and Microparticles through Sequential Capillarity-assisted Assembly
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Patterning of Microorganisms and Microparticles through Sequential Capillarity-assisted Assembly

Published on: November 4, 2021

Microfluidic Mixers for Studying Protein Folding
12:42

Microfluidic Mixers for Studying Protein Folding

Published on: April 10, 2012

Microfluidic Chips Controlled with Elastomeric Microvalve Arrays
18:11

Microfluidic Chips Controlled with Elastomeric Microvalve Arrays

Published on: October 1, 2007

  • Design of a modified Hele-Shaw cell with 7 precisely controlled flow rates.
  • Utilization of particles that irreversibly adhere upon contact.

    • Main Results:

    • A sequential assembly algorithm was proven capable of manufacturing arbitrary 3D structures.
    • The proposed microfluidic system successfully assembled the complete English alphabet.
    • Demonstrated feasibility of constructing intricate, predefined patterns from identical microscale constituents.

    Conclusions:

    • Sequential assembly algorithms are effective for fabricating arbitrary 3D microstructures.
    • Microfluidic systems, specifically modified Hele-Shaw cells, can be programmed for complex pattern generation.
    • This approach holds potential for advanced micro-assembly applications in various scientific fields.