Microfluidic Approaches for the Study of Emulsions: Transport of Solutes

Philipp Gruner (1) , Yousr Skhiri (2) , Benoît Semin (3) , Quentin Brosseau (1) , Andrew Griffiths , Valérie Taly (4) , Jean-Christophe Baret (5)

1 MPIDS - Max Planck Institute for Dynamics and Self-Organization
2 ISIS - Institut de Science et d'ingénierie supramoléculaires
3 LadHyX - Laboratoire d'hydrodynamique
4 MEPPOT - U1147 - Médecine Personnalisée, Pharmacogénomique, Optimisation Thérapeutique
5 CRPP - Centre de recherches Paul Pascal

Molecular transport as an ageing process in emulsions is revisited using microfluidic droplet production, manipulation and analysis. We show how microfluidic systems provide extremely quantitative insights into the phenomenon. We designed microfluidic systems to address the specificity of molecular transport in fluorinated oils and showed the role of the surfactant solubilised in the oil phase on the time scale of the exchange and rationalize the effect of water soluble additives on the exchange rate. Finally, we also demonstrate that the droplet packing influences the exchange rate through the number of first neighbours.

Domaines: Matière Molle [cond-mat.soft]

Philipp Gruner, Yousr Skhiri, Benoît Semin, Quentin Brosseau, Andrew Griffiths, et al.. Microfluidic Approaches for the Study of Emulsions: Transport of Solutes. MRS Online Proceedings Library, 2013, 1530, ⟨10.1557/opl.2013.80⟩. ⟨hal-02148792⟩