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Marangoni-driven flower-like patterning of an evaporating drop spreading on a liquid substrate

Author

Listed:
  • F. Wodlei

    (Université de Toulouse, CNRS UMR 5623, Université Paul Sabatier)

  • J. Sebilleau

    (Université de Toulouse, CNRS, INPT, UPS)

  • J. Magnaudet

    (Université de Toulouse, CNRS, INPT, UPS)

  • V. Pimienta

    (Université de Toulouse, CNRS UMR 5623, Université Paul Sabatier)

Abstract

Drop motility at liquid surfaces is attracting growing interest because of its potential applications in microfluidics and artificial cell design. Here we report the unique highly ordered pattern that sets in when a millimeter-size drop of dichloromethane spreads on an aqueous substrate under the influence of surface tension, both phases containing a surfactant. Evaporation induces a Marangoni flow that forces the development of a marked rim at the periphery of the spreading film. At some point this rim breaks up, giving rise to a ring of droplets, which modifies the aqueous phase properties in such a way that the film recoils. The process repeats itself, yielding regular large-amplitude pulsations. Wrinkles form at the film surface due to an evaporative instability. During the dewetting stage, they emit equally spaced radial strings of droplets which, combined with those previously expelled from the rim, make the top view of the system resemble a flower.

Suggested Citation

  • F. Wodlei & J. Sebilleau & J. Magnaudet & V. Pimienta, 2018. "Marangoni-driven flower-like patterning of an evaporating drop spreading on a liquid substrate," Nature Communications, Nature, vol. 9(1), pages 1-12, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-03201-3
    DOI: 10.1038/s41467-018-03201-3
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    Cited by:

    1. Chen, Bo & Zhang, Yuhang & Dai, Zhaofeng & Wang, Chen & Zhang, Xiaosong, 2022. "Experimental research on the dynamics of a train of droplets impacting, from droplets to liquid film, continuity and inheritance," Energy, Elsevier, vol. 256(C).
    2. Bingqiang Ji & Zhengyu Yang & Jie Feng, 2021. "Compound jetting from bubble bursting at an air-oil-water interface," Nature Communications, Nature, vol. 12(1), pages 1-10, December.
    3. Yang Xiao & Neil M. Ribe & Yage Zhang & Yi Pan & Yang Cao & Ho Cheung Shum, 2022. "Generation of Fermat’s spiral patterns by solutal Marangoni-driven coiling in an aqueous two-phase system," Nature Communications, Nature, vol. 13(1), pages 1-11, December.

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