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1 PublicationInformation transmission by Marangoni-driven relaxation oscillations at droplets
Mokbel, M.; Schwarzenberger, K.; Aland, S.; Eckert, K.
Abstract
Marangoni-driven relaxation oscillations can be observed in many systems where concentration gradients of surface-active substances exist. In the present paper, we describe the experimentally observed coupling between relaxation oscillations at neighboring droplets in a concentration gradient. By a numerical parameter study, we evaluate the oscillation characteristics depending on relevant material parameters and the pairwise droplet distance. Based on these findings, we demonstrate that hydrodynamic interaction in multidroplet configurations can lead to a synchronization of the oscillations over the whole ensemble. This effect has the potential to be used as a novel approach for information transmission in microfluidic applications.
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Soft Matter 14(2018), 9250-9262
DOI: 10.1039/c8sm01720d
Cited 3 times in Scopus
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Permalink: https://www.hzdr.de/publications/Publ-28061
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