Angel et al. studied the assembly of BSA with other proteinson microspheres production [21]. They suggest that two proteinscan form together the microsphere’s walls from fluorescence data.TEM showed an average particle size of around 250 nm (Fig. 1),corresponding to the values obtained by DLS measurements (seeSupplementary Fig. S2). It illustrates that the proteinaceous micro-emulsions are spherical with a regular surface. This morphologywould allow a higher protein stabilization, since the protein it ispacked sphere with contained movements and a minimal contactwith water