Dynamic Pattern Formation in a Vesicle-Generating Microfluidic Device

Todd Thorsen, Richard W. Roberts, Frances H. Arnold, and Stephen R. Quake
Phys. Rev. Lett. 86, 4163 – Published 30 April 2001
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Abstract

Spatiotemporal pattern formation occurs in a variety of nonequilibrium physical and chemical systems. Here we show that a microfluidic device designed to produce reverse micelles can generate complex, ordered patterns as it is continuously operated far from thermodynamic equilibrium. Flow in a microfluidic system is usually simple—viscous effects dominate and the low Reynolds number leads to laminar flow. Self-assembly of the vesicles into patterns depends on channel geometry and relative fluid pressures, enabling the production of motifs ranging from monodisperse droplets to helices and ribbons.

  • Received 9 January 2001

DOI:https://doi.org/10.1103/PhysRevLett.86.4163

©2001 American Physical Society

Authors & Affiliations

Todd Thorsen1, Richard W. Roberts1, Frances H. Arnold1, and Stephen R. Quake2

  • 1Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125
  • 2Department of Applied Physics, California Institute of Technology, Pasadena, California 91125

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Vol. 86, Iss. 18 — 30 April 2001

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