--- res: bibo_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.@eng bibo_authorlist: - foaf_Person: foaf_givenName: Jérémie A foaf_name: Palacci, Jérémie A foaf_surname: Palacci foaf_workInfoHomepage: http://www.librecat.org/personId=8fb92548-2b22-11eb-b7c1-a3f0d08d7c7d orcid: 0000-0002-7253-9465 - foaf_Person: foaf_givenName: Benjamin foaf_name: Abécassis, Benjamin foaf_surname: Abécassis - foaf_Person: foaf_givenName: Cécile foaf_name: Cottin-Bizonne, Cécile foaf_surname: Cottin-Bizonne - foaf_Person: foaf_givenName: Christophe foaf_name: Ybert, Christophe foaf_surname: Ybert - foaf_Person: foaf_givenName: Lydéric foaf_name: Bocquet, Lydéric foaf_surname: Bocquet bibo_doi: 10.1103/physrevlett.104.138302 bibo_issue: '13' bibo_volume: 104 dct_date: 2010^xs_gYear dct_isPartOf: - http://id.crossref.org/issn/00319007 - http://id.crossref.org/issn/10797114 dct_language: eng dct_publisher: American Physical Society@ dct_title: Colloidal motility and pattern formation under rectified diffusiophoresis@ fabio_hasPubmedId: '20481918' ...