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Details

Autor(en) / Beteiligte
Titel
Interfacial mechanisms in active emulsions
Ist Teil von
  • Soft matter, 2014-01, Vol.1 (36), p.78-722
Ort / Verlag
England
Erscheinungsjahr
2014
Quelle
MEDLINE
Beschreibungen/Notizen
  • Active emulsions, i.e. , emulsions whose droplets perform self-propelled motion, are of tremendous interest for mimicking collective phenomena in biological populations such as phytoplankton and bacterial colonies, but also for experimentally studying rheology, pattern formation, and phase transitions in systems far from thermal equilibrium. For fuelling such systems, molecular processes involving the surfactants which stabilize the emulsions are a straightforward concept. We outline and compare two different types of reactions, one which chemically modifies the surfactant molecules, the other which transfers them into a different colloidal state. While in the first case symmetry breaking follows a standard linear instability, the second case turns out to be more complex. Depending on the dissolution pathway, there is either an intrinsically nonlinear instability, or no symmetry breaking at all (and hence no locomotion). Active emulsions, i.e. , emulsions whose droplets perform self-propelled motion, are of tremendous interest for mimicking collective phenomena in biological populations such as phytoplankton and bacterial colonies, but also for experimentally studying rheology, pattern formation, and phase transitions in systems far from thermal equilibrium.
Sprache
Englisch
Identifikatoren
ISSN: 1744-683X
eISSN: 1744-6848
DOI: 10.1039/c4sm00550c
Titel-ID: cdi_proquest_miscellaneous_1555626827

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