75th Annual Meeting of the APS Division of Fluid Dynamics (November 20, 2022 — November 22, 2022)

V0080: Magnetic soap films

  • Navraj Lalli, Imperial College London
  • Li Shen, Imperial College London
  • Daniele Dini, Imperial College London
  • Andrea Giusti, Imperial College London
DOI: https://doi.org/10.1103/APS.DFD.2022.GFM.V0080

Applying a magnetic field to a freely-suspended soap film containing magnetic nanoparticles influences how the liquid flows in the film and therefore how quickly it thins. This has important implications on how long the film survives before it bursts, which is a critical consideration for any application involving films and foams. Our findings suggest that a magnetic field may be able to precisely control when a magnetic soap film bursts. This could lead to the development of new technologies, such as using a magnetic soap film to encapsulate a useful substance like a gaseous drug and to control when the substance is released by using a magnetic field to induce rupture.

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