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Issue 13, 2019
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Curvature dynamics and long-range effects on fluid–fluid interfaces with colloids

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Abstract

We investigate the dynamics of a phase-separating binary fluid, containing colloidal dumbbells anchored to the fluid–fluid interface. Extensive lattice Boltzmann-immersed boundary method simulations reveal that the presence of soft dumbbells can significantly affect the curvature dynamics of the interface between phase-separating fluids, even though the coarsening dynamics is left nearly unchanged. In addition, our results show that the curvature dynamics exhibits distinct non-local effects, which might be exploited for the design of new soft mesoscale materials. We point out that the inspection of the statistical dynamics of the curvature can disclose new insights into local inhomogeneities of the binary fluid configuration, as a function of the volume fraction and aspect ratio of the dumbbells.

Graphical abstract: Curvature dynamics and long-range effects on fluid–fluid interfaces with colloids

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Publication details

The article was received on 26 Nov 2018, accepted on 17 Feb 2019 and first published on 25 Feb 2019


Article type: Paper
DOI: 10.1039/C8SM02396D
Soft Matter, 2019,15, 2848-2862

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    Curvature dynamics and long-range effects on fluid–fluid interfaces with colloids

    A. Tiribocchi, F. Bonaccorso, M. Lauricella, S. Melchionna, A. Montessori and S. Succi, Soft Matter, 2019, 15, 2848
    DOI: 10.1039/C8SM02396D

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