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Determination of Interfacial Concentration of a Contaminated Droplet from Shape Oscillation Damping

Lalanne, Benjamin and Masbernat, Olivier and Risso, Frédéric Determination of Interfacial Concentration of a Contaminated Droplet from Shape Oscillation Damping. (2020) Physical Review Letters, 124 (19). ISSN 0031-9007

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Official URL: https://doi.org/10.1103/PhysRevLett.124.194501

Abstract

We present a method to measure very small interfacial concentration of a contaminant that is irreversibly adsorbed on the interface of a bubble or droplet. It is an application of the linear theory of shape oscillation which relates the Gibbs elasticity to the damping, extended by numerical simulations to deal with moving droplets. It explains previous unexpected observations on the effect of contamination at various oscillation wavelengths. The experimental procedure is easy to implement and can thereby deeply enhance the analysis of most systems involving uncontrolled contamination.

Item Type:Article
HAL Id:hal-02641224
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
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Deposited On:28 May 2020 14:24

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