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  • Title: Marangoni instability and spontaneous non-linear oscillations produced at liquid interfaces by surfactant transfer.
    Author: Kovalchuk NM, Vollhardt D.
    Journal: Adv Colloid Interface Sci; 2006 Jun 30; 120(1-3):1-31. PubMed ID: 16626601.
    Abstract:
    The systems producing non-linear spontaneous oscillations of the interfacial tension and electric potential are considered and the available criteria for development of convective instability by the surfactant transfer through a liquid interface are discussed. The non-linear oscillations are observed by the surfactant transfer from a point-like source situated in the bulk of liquid, by the transfer of two ionic solutes through a liquid interface in two opposite directions, and by the transfer of ionic solutes through a liquid membrane. All these systems are governed by more complicated mechanisms than merely arising oscillatory convective instability. The main experimental results obtained for these three systems as well as theoretical models proposed for their explanation are discussed.
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