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Enhanced fluid mixing and separation of magnetic bead agglomerates based on dipolar interaction in rotating magnetic fields
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10.1063/1.3696886
/content/aip/journal/apl/100/12/10.1063/1.3696886
http://aip.metastore.ingenta.com/content/aip/journal/apl/100/12/10.1063/1.3696886
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Microscopy image of the SU8-3025 casting mold. Inset (a) schematically shows the operation principle of the microfluidic gate and (b) a magnification of the separation junction.

Image of FIG. 2.
FIG. 2.

Clockwise rotating magnetic bead chains increase the mixing of FAD solution and water. (a) Distortion of interface (highlighted red) along T-junction and (b) resulting concentration profile in comparison to a thermal reference.

Image of FIG. 3.
FIG. 3.

Dynamics of rotating particle assemblies composed of aggregated MyOneTM beads under clockwise field rotation. (a) guidance of superstructure to lower exit at 240 μm/s. (b) and (c) shows structure breaking events at 160 and 200 μm/s for chain and cluster structures, respectively. (d) Separation of large agglomerates at the separation junction.

Image of FIG. 4.
FIG. 4.

Evaluation of the separation performance. (a) The fraction of clusters, chains, and beads in superstructures decreases with increasing mean flow velocity of the carrier liquid. (b) For the separation efficiency, a decrease with the mean flow velocity is obtained. (c) The quantity allows for the evaluation of the optimal working regime of the structure, which reveals that the maximum of the mass separation rate is obtained in the velocity range between 63 μm/s and 274 μm/s.

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/content/aip/journal/apl/100/12/10.1063/1.3696886
2012-03-23
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Enhanced fluid mixing and separation of magnetic bead agglomerates based on dipolar interaction in rotating magnetic fields
http://aip.metastore.ingenta.com/content/aip/journal/apl/100/12/10.1063/1.3696886
10.1063/1.3696886
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