Universal optimal geometry of minimal phoretic pumps.
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ABSTRACT:
SUBMITTER: Michelin S
PROVIDER: S-EPMC6658517 | biostudies-literature | 2019 Jul
REPOSITORIES: biostudies-literature
Publications
Universal optimal geometry of minimal phoretic pumps.
Michelin Sébastien S Lauga Eric E
Scientific reports 20190725 1
Unlike pressure-driven flows, surface-mediated phoretic flows provide efficient means to drive fluid motion on very small scales. Colloidal particles covered with chemically-active patches with nonzero phoretic mobility (e.g. Janus particles) swim using self-generated gradients, and similar physics can be exploited to create phoretic pumps. Here we analyse in detail the design principles of phoretic pumps and show that for a minimal phoretic pump, consisting of 3 distinct chemical patches, the o ...[more]
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