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Dynamic self-assembly and control of microfluidic particle crystals

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Zeitschriftentitel: Proceedings of the National Academy of Sciences
Personen und Körperschaften: Lee, Wonhee, Amini, Hamed, Stone, Howard A., Di Carlo, Dino
In: Proceedings of the National Academy of Sciences, 107, 2010, 52, S. 22413-22418
Format: E-Article
Sprache: Englisch
veröffentlicht:
Proceedings of the National Academy of Sciences
Schlagwörter:
Multidisciplinary
author_facet Lee, Wonhee
Amini, Hamed
Stone, Howard A.
Di Carlo, Dino
Lee, Wonhee
Amini, Hamed
Stone, Howard A.
Di Carlo, Dino
author Lee, Wonhee
Amini, Hamed
Stone, Howard A.
Di Carlo, Dino
spellingShingle Lee, Wonhee
Amini, Hamed
Stone, Howard A.
Di Carlo, Dino
Proceedings of the National Academy of Sciences
Dynamic self-assembly and control of microfluidic particle crystals
Multidisciplinary
author_sort lee, wonhee
spelling Lee, Wonhee Amini, Hamed Stone, Howard A. Di Carlo, Dino 0027-8424 1091-6490 Proceedings of the National Academy of Sciences Multidisciplinary http://dx.doi.org/10.1073/pnas.1010297107 <jats:p>Engineered two-phase microfluidic systems have recently shown promise for computation, encryption, and biological processing. For many of these systems, complex control of dispersed-phase frequency and switching is enabled by nonlinearities associated with interfacial stresses. Introducing nonlinearity associated with fluid inertia has recently been identified as an easy to implement strategy to control two-phase (solid-liquid) microscale flows. By taking advantage of inertial effects we demonstrate controllable self-assembling particle systems, uncover dynamics suggesting a unique mechanism of dynamic self-assembly, and establish a framework for engineering microfluidic structures with the possibility of spatial frequency filtering. Focusing on the dynamics of the particle–particle interactions reveals a mechanism for the dynamic self-assembly process; inertial lift forces and a parabolic flow field act together to stabilize interparticle spacings that otherwise would diverge to infinity due to viscous disturbance flows. The interplay of the repulsive viscous interaction and inertial lift also allow us to design and implement microfluidic structures that irreversibly change interparticle spacing, similar to a low-pass filter. Although often not considered at the microscale, nonlinearity due to inertia can provide a platform for high-throughput passive control of particle positions in all directions, which will be useful for applications in flow cytometry, tissue engineering, and metamaterial synthesis.</jats:p> Dynamic self-assembly and control of microfluidic particle crystals Proceedings of the National Academy of Sciences
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title Dynamic self-assembly and control of microfluidic particle crystals
title_unstemmed Dynamic self-assembly and control of microfluidic particle crystals
title_full Dynamic self-assembly and control of microfluidic particle crystals
title_fullStr Dynamic self-assembly and control of microfluidic particle crystals
title_full_unstemmed Dynamic self-assembly and control of microfluidic particle crystals
title_short Dynamic self-assembly and control of microfluidic particle crystals
title_sort dynamic self-assembly and control of microfluidic particle crystals
topic Multidisciplinary
url http://dx.doi.org/10.1073/pnas.1010297107
publishDate 2010
physical 22413-22418
description <jats:p>Engineered two-phase microfluidic systems have recently shown promise for computation, encryption, and biological processing. For many of these systems, complex control of dispersed-phase frequency and switching is enabled by nonlinearities associated with interfacial stresses. Introducing nonlinearity associated with fluid inertia has recently been identified as an easy to implement strategy to control two-phase (solid-liquid) microscale flows. By taking advantage of inertial effects we demonstrate controllable self-assembling particle systems, uncover dynamics suggesting a unique mechanism of dynamic self-assembly, and establish a framework for engineering microfluidic structures with the possibility of spatial frequency filtering. Focusing on the dynamics of the particle–particle interactions reveals a mechanism for the dynamic self-assembly process; inertial lift forces and a parabolic flow field act together to stabilize interparticle spacings that otherwise would diverge to infinity due to viscous disturbance flows. The interplay of the repulsive viscous interaction and inertial lift also allow us to design and implement microfluidic structures that irreversibly change interparticle spacing, similar to a low-pass filter. Although often not considered at the microscale, nonlinearity due to inertia can provide a platform for high-throughput passive control of particle positions in all directions, which will be useful for applications in flow cytometry, tissue engineering, and metamaterial synthesis.</jats:p>
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author Lee, Wonhee, Amini, Hamed, Stone, Howard A., Di Carlo, Dino
author_facet Lee, Wonhee, Amini, Hamed, Stone, Howard A., Di Carlo, Dino, Lee, Wonhee, Amini, Hamed, Stone, Howard A., Di Carlo, Dino
author_sort lee, wonhee
container_issue 52
container_start_page 22413
container_title Proceedings of the National Academy of Sciences
container_volume 107
description <jats:p>Engineered two-phase microfluidic systems have recently shown promise for computation, encryption, and biological processing. For many of these systems, complex control of dispersed-phase frequency and switching is enabled by nonlinearities associated with interfacial stresses. Introducing nonlinearity associated with fluid inertia has recently been identified as an easy to implement strategy to control two-phase (solid-liquid) microscale flows. By taking advantage of inertial effects we demonstrate controllable self-assembling particle systems, uncover dynamics suggesting a unique mechanism of dynamic self-assembly, and establish a framework for engineering microfluidic structures with the possibility of spatial frequency filtering. Focusing on the dynamics of the particle–particle interactions reveals a mechanism for the dynamic self-assembly process; inertial lift forces and a parabolic flow field act together to stabilize interparticle spacings that otherwise would diverge to infinity due to viscous disturbance flows. The interplay of the repulsive viscous interaction and inertial lift also allow us to design and implement microfluidic structures that irreversibly change interparticle spacing, similar to a low-pass filter. Although often not considered at the microscale, nonlinearity due to inertia can provide a platform for high-throughput passive control of particle positions in all directions, which will be useful for applications in flow cytometry, tissue engineering, and metamaterial synthesis.</jats:p>
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imprint Proceedings of the National Academy of Sciences, 2010
imprint_str_mv Proceedings of the National Academy of Sciences, 2010
institution DE-Zwi2, DE-D161, DE-Gla1, DE-Zi4, DE-15, DE-Pl11, DE-Rs1, DE-105, DE-14, DE-Ch1, DE-L229, DE-D275, DE-Bn3, DE-Brt1
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spelling Lee, Wonhee Amini, Hamed Stone, Howard A. Di Carlo, Dino 0027-8424 1091-6490 Proceedings of the National Academy of Sciences Multidisciplinary http://dx.doi.org/10.1073/pnas.1010297107 <jats:p>Engineered two-phase microfluidic systems have recently shown promise for computation, encryption, and biological processing. For many of these systems, complex control of dispersed-phase frequency and switching is enabled by nonlinearities associated with interfacial stresses. Introducing nonlinearity associated with fluid inertia has recently been identified as an easy to implement strategy to control two-phase (solid-liquid) microscale flows. By taking advantage of inertial effects we demonstrate controllable self-assembling particle systems, uncover dynamics suggesting a unique mechanism of dynamic self-assembly, and establish a framework for engineering microfluidic structures with the possibility of spatial frequency filtering. Focusing on the dynamics of the particle–particle interactions reveals a mechanism for the dynamic self-assembly process; inertial lift forces and a parabolic flow field act together to stabilize interparticle spacings that otherwise would diverge to infinity due to viscous disturbance flows. The interplay of the repulsive viscous interaction and inertial lift also allow us to design and implement microfluidic structures that irreversibly change interparticle spacing, similar to a low-pass filter. Although often not considered at the microscale, nonlinearity due to inertia can provide a platform for high-throughput passive control of particle positions in all directions, which will be useful for applications in flow cytometry, tissue engineering, and metamaterial synthesis.</jats:p> Dynamic self-assembly and control of microfluidic particle crystals Proceedings of the National Academy of Sciences
spellingShingle Lee, Wonhee, Amini, Hamed, Stone, Howard A., Di Carlo, Dino, Proceedings of the National Academy of Sciences, Dynamic self-assembly and control of microfluidic particle crystals, Multidisciplinary
title Dynamic self-assembly and control of microfluidic particle crystals
title_full Dynamic self-assembly and control of microfluidic particle crystals
title_fullStr Dynamic self-assembly and control of microfluidic particle crystals
title_full_unstemmed Dynamic self-assembly and control of microfluidic particle crystals
title_short Dynamic self-assembly and control of microfluidic particle crystals
title_sort dynamic self-assembly and control of microfluidic particle crystals
title_unstemmed Dynamic self-assembly and control of microfluidic particle crystals
topic Multidisciplinary
url http://dx.doi.org/10.1073/pnas.1010297107