PhD project: Understanding sprouting droplets

Project description

Emulsions are immensely important as model soft matter systems because the number, shape and contents of the droplets can change during experiments. This make these systems complex and useful. We recently showed that water droplets, stabilized by a layer of interfacial particles, can be made to sprout tubes [1]. We now understand a few aspects of this behaviour and we have carried out some initial work with two droplets; [2, 3] we would like to be able to scale down the phenomena to smaller droplets and then to explore what happens with many droplets. This PhD project will involve replicating the sprouting behaviour using smaller droplets and exploring their behaviour using fluorescence confocal microscopy. In order to understand the results there will also be the opportunity to make companion measurements using interfacial rheology.

[1] M. Grauzinyte, J. Forth, K. A. Rumble, P. S. Clegg, Angew. Chem. Int. Ed. 54, 1456 (2015).

[2] K.A. Rumble, I.D. Stoev, D.J. French, A. Abou-Hassan, P.S. Clegg, Langmuir, 33, 4235 (2017).

[3] J. Otero, S. Meeker and P.S. Clegg, Soft Matter, 14, 3783 (2018).

Project supervisor

  • (School of Physics & Astronomy, University of Edinburgh)

The project supervisor welcomes informal enquiries about this project.

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