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doi:10.22028/D291-38917
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: | https://doi.org/10.1039/D0SM00460J |
Link to this record: | urn:nbn:de:bsz:291--ds-389176 hdl:20.500.11880/35109 http://dx.doi.org/10.22028/D291-38917 |
ISSN: | 1744-6848 1744-683X |
Date of registration: | 6-Feb-2023 |
Description of the related object: | Electronic supplementary information |
Related object: | https://www.rsc.org/suppdata/d0/sm/d0sm00460j/d0sm00460j1.avi https://www.rsc.org/suppdata/d0/sm/d0sm00460j/d0sm00460j2.avi https://www.rsc.org/suppdata/d0/sm/d0sm00460j/d0sm00460j3.avi https://www.rsc.org/suppdata/d0/sm/d0sm00460j/d0sm00460j4.pdf |
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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