Nanoemulsions obtained via bubble bursting at a compound interface
| Autor: | Jie Feng, Luben Nikolaev Arnaudov, Theodor D. Gurkov, Howard A. Stone, Matthieu Roché, Simeon D. Stoyanov, Daniele Vigolo, Gichka G. Tsutsumanova |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Laboratorium voor Fysische chemie en Kolloïdkunde
Bubble water General Physics and Astronomy FOS: Physical sciences Nanotechnology Physics::Fluid Dynamics Colloid Mass transfer Fluid dynamics surfactant solutions sea spray Physical Chemistry and Colloid Science VLAG Physics Condensed Matter - Materials Science Fluid Dynamics (physics.flu-dyn) Materials Science (cond-mat.mtrl-sci) Physics - Fluid Dynamics Sea spray Physics - Atmospheric and Oceanic Physics Chemical physics Oil droplet Atmospheric and Oceanic Physics (physics.ao-ph) gas-bubbles alkanes Wetting Dispersion (chemistry) aerosols |
| Zdroj: | Nature physics 10 (2014) Nature physics, 10, 606-612 |
| ISSN: | 1745-2473 |
| Popis: | The bursting of bubbles at an air/liquid interface is a familiar occurrence important to foam stability, cell cultures in bioreactors and mass transfer between the sea and atmosphere. Here we document the hitherto unreported formation and dispersal into the water column of submicrometre oil droplets following bubble bursting at a compound air/oil/water-with-surfactant interface. We show that dispersal results from the detachment of an oil spray from the bottom of the bubble towards water during bubble collapse. We provide evidence that droplet size is selected by physicochemical interactions between oil molecules and the surfactants rather than by hydrodynamic effects. We illustrate the unrecognized role that this dispersal mechanism may play in the fate of the sea surface micro-layer and of pollutant spills by dispersing petroleum in the water column. Finally, our system provides an energy-efficient route, with potential upscalability and wide applicability, for applications in drug delivery, food production and material science, which we demonstrate by producing polymeric nanoparticles. |
| Databáze: | OpenAIRE |
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