Please use this identifier to cite or link to this item: doi:10.22028/D291-38917
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Title: Kinetics of active water/ethanol Janus droplets
Author(s): Li, Menglin
Hosseinzadeh, Mahmoud
Pagonabarraga, Ignacio
Seemann, Ralf
Brinkmann, Martin
Fleury, Jean-Baptiste
Language: English
Title: Soft Matter
Volume: 16
Issue: 29
Pages: 6803-6811
Publisher/Platform: Royal Society of Chemistry
Year of Publication: 2020
DDC notations: 500 Science
Publikation type: Journal Article
Abstract: Droplets made of a water/ethanol mixture spontaneously self-propel in an oil/surfactant solution and, depending on the initial ethanol concentration at the time of production, may evolve in up to three stages. Upon self-propulsion the droplets absorb surfactant molecules during their continuous motion in the oily phase. In combination with the continuous loss of ethanol this mass exchange with the ambient phase may lead to a spontaneous phase separation of the water/ethanol mixture, and eventually to the formation of characteristic Janus droplets. Supported by experimental evidence, we propose a simple model that is able to explain the propulsion velocity and its scaling with the droplet radius in the last stage of the droplet evolution.
DOI of the first publication: 10.1039/D0SM00460J
URL of the first publication:
Link to this record: urn:nbn:de:bsz:291--ds-389176
ISSN: 1744-6848
Date of registration: 6-Feb-2023
Description of the related object: Electronic supplementary information
Related object:
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Physik
Professorship: NT - Prof. Dr. Karin Jacobs
NT - Prof. Dr. Ralf Seemann
Collections:SciDok - Der Wissenschaftsserver der Universität des Saarlandes

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