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Issue 2, 2016
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Reply to the Comments on “Curvature capillary migration of microspheres” by P. Galatola and A. Würger

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Abstract

We have studied microparticle migration on curved fluid interfaces in experiment and derived an expression for the associated capillary energy E for two cases, i.e., pinned contact lines and equilibrium contact lines, which differ from expressions derived by others in the literature. In this article, a particle of radius a makes a disturbance in a large domain characterized by principal radii of curvature R1 and R2. Since a is smaller than all associated geometric and physico-chemical length scales, analysis calls for a singular perturbation approach. We recapitulate these concepts, identify conceptual errors in the Comments about our work, and provide evidence from experiments and simulations that support our view.

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Publication details

The article was received on 05 Oct 2015, accepted on 09 Nov 2015 and first published on 09 Nov 2015


Article type: Comment
DOI: 10.1039/C5SM02480C
Citation: Soft Matter, 2016,12, 333-336
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    Reply to the Comments on “Curvature capillary migration of microspheres” by P. Galatola and A. Würger

    N. Sharifi-Mood, I. B. Liu and K. J. Stebe, Soft Matter, 2016, 12, 333
    DOI: 10.1039/C5SM02480C

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