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EnglishCan we exploit hydrodynamic instabilities to trigger an efficient, selective and spontaneous flow of encapsulated chemical information? One possible answer to this question is presented in this paper where cross-diffusion, which commonly characterizes compartmentalized dispersed systems, is shown to initiate buoyancy-driven hydrodynamic instabilities. A general theoretical framework allows us to predict and classify cross-diffusion-induced convection in two-layer stratifications under the action of the gravitational field. The related nonlinear dynamics is described by a cross-diffusion-convection (CDC) model where fickian diffusion is coupled to the Stokes equations. We identify two types of hydrodynamic modes (the negative cross-diffusion-driven convection, NCC, and the positive cross-diffusion-driven convection, PCC) corresponding to the sign of the cross-diffusion term dominating the system dynamics. We finally show how AOT water-in-oil reverse microemulsions are an ideal model system to confirm the general theory and to approach experimentally cross-diffusion-induced hydrodynamic scenarios.
From microscopic compartmentalization to hydrodynamic patterns: New pathways for information transport / Budroni, Marcello A.; Carballido-Landeira, Jorge; Intiso, Adriano; Lemaigre, Lorena; De Wit, Anne; Rossi, Federico. - 587:(2016), pp. 171-183. [10.1007/978-3-319-32695-5_16]
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| Titolo: | From microscopic compartmentalization to hydrodynamic patterns: New pathways for information transport | |
| Autori: | ||
| Data di pubblicazione: | 2016 | |
| Citazione: | From microscopic compartmentalization to hydrodynamic patterns: New pathways for information transport / Budroni, Marcello A.; Carballido-Landeira, Jorge; Intiso, Adriano; Lemaigre, Lorena; De Wit, Anne; Rossi, Federico. - 587:(2016), pp. 171-183. [10.1007/978-3-319-32695-5_16] | |
| Handle: | http://hdl.handle.net/11388/201280 | |
| ISBN: | 9783319326948 | |
| Appare nelle tipologie: | 2.1 Contributo in volume (Capitolo o Saggio) |
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