Figure 2. A monolayer of fibrils is efficiently adsorbed at the W/W interface.

(a) Scheme and (b) fluorescence microscopy image of ThT-dyed lysozyme fibrils accumulated at the interface of W/W emulsion droplets. Scale bar, 20 μm. (c) In the absence of fibrils, weak ThT fluorescence is observed in the dextran-rich droplet phase. Scale bar, 20 μm. (d) The average diameter of stabilized W/W emulsion droplets increases linearly with the volume fraction of the emulsion phase. Error bars represent the s.d. (e) The total interfacial area stabilized by fibrils increases almost linearly with the fibril concentration and remains constant when changing the volume fraction of the droplet phase. (f) An SEM image confirms that lysozyme fibrils deposit as a monolayer at the emulsion interfaces. Scale bar, 500 nm.