Controlled Buckling and Crumpling of Nanoparticle-Coated Droplets

Details Controlled Buckling and Crumpling of Nanoparticle-Coated Droplets Controlled Buckling and Crumpling of Nanoparticle-Coated Droplets

2010-11-18

arxiv.org/abs/1011.4271v1

Langmuir, 2010

Physics

Condensed Matter

Soft Condensed Matter

Supporting information (pictures, text, movie) available free of charge online at http://pubs.acs.org/doi/abs/10.1021/la103874

Scientific paper

10.1021/la103874z

We introduce a new experimental approach to study the structural transitions of large numbers of nanoparticle-coated droplets as their volume is reduced. We use an emulsion system where the dispersed phase is slightly soluble in the continuous phase. By adding a fixed amount of unsaturated continuous phase, the volume of the droplets can be controllably reduced, causing them to buckle or crumple, thereby becoming nonspherical. The resultant morphologies depend both on the extent of volume reduction and the average droplet size. The buckling and crumpling behavior implies that the droplet surfaces are solid.

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