Colloidal motility and pattern formation under rectified diffusiophoresis

Palacci JA, Abécassis B, Cottin-Bizonne C, Ybert C, Bocquet L. 2010. Colloidal motility and pattern formation under rectified diffusiophoresis. Physical Review Letters. 104(13), 138302.


Journal Article | Published | English

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Author
Palacci, Jérémie AIST Austria; Abécassis, Benjamin; Cottin-Bizonne, Cécile; Ybert, Christophe; Bocquet, Lydéric
Abstract
In this Letter, we characterize experimentally the diffusiophoretic motion of colloids and λ-DNA toward higher concentration of solutes, using microfluidic technology to build spatially and temporally controlled concentration gradients. We then demonstrate that segregation and spatial patterning of the particles can be achieved from temporal variations of the solute concentration profile. This segregation takes the form of a strong trapping potential, stemming from an osmotically induced rectification mechanism of the solute time-dependent variations. Depending on the spatial and temporal symmetry of the solute signal, localization patterns with various shapes can be achieved. These results highlight the role of solute contrasts in out-of-equilibrium processes occurring in soft matter.
Publishing Year
Date Published
2010-04-02
Journal Title
Physical Review Letters
Volume
104
Issue
13
Article Number
138302
ISSN
eISSN
IST-REx-ID

Cite this

Palacci JA, Abécassis B, Cottin-Bizonne C, Ybert C, Bocquet L. Colloidal motility and pattern formation under rectified diffusiophoresis. Physical Review Letters. 2010;104(13). doi:10.1103/physrevlett.104.138302
Palacci, J. A., Abécassis, B., Cottin-Bizonne, C., Ybert, C., & Bocquet, L. (2010). Colloidal motility and pattern formation under rectified diffusiophoresis. Physical Review Letters. American Physical Society. https://doi.org/10.1103/physrevlett.104.138302
Palacci, Jérémie A, Benjamin Abécassis, Cécile Cottin-Bizonne, Christophe Ybert, and Lydéric Bocquet. “Colloidal Motility and Pattern Formation under Rectified Diffusiophoresis.” Physical Review Letters. American Physical Society, 2010. https://doi.org/10.1103/physrevlett.104.138302.
J. A. Palacci, B. Abécassis, C. Cottin-Bizonne, C. Ybert, and L. Bocquet, “Colloidal motility and pattern formation under rectified diffusiophoresis,” Physical Review Letters, vol. 104, no. 13. American Physical Society, 2010.
Palacci JA, Abécassis B, Cottin-Bizonne C, Ybert C, Bocquet L. 2010. Colloidal motility and pattern formation under rectified diffusiophoresis. Physical Review Letters. 104(13), 138302.
Palacci, Jérémie A., et al. “Colloidal Motility and Pattern Formation under Rectified Diffusiophoresis.” Physical Review Letters, vol. 104, no. 13, 138302, American Physical Society, 2010, doi:10.1103/physrevlett.104.138302.
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PMID: 20481918
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