Effect of nanoparticles on spontaneous Ouzo emulsification

Synthesis of ultrasmall metal nanoparticles and continuous shells at the liquid/liquid interface in Ouzo emulsions

“…3,4,[17][18][19] In the case of Pickering emulsions, droplet coalescence is limited by the particle layer and stops when the total amount of interface matches the coating ability of the particles. 11,15,33 The same mechanism was also demonstrated recently for spontaneous Ouzo emulsions using particles of ∼8 nm. 15 In order to separate the stabilizing effect of the NPs on the droplets (i.e.…”

“…11,15,33 The same mechanism was also demonstrated recently for spontaneous Ouzo emulsions using particles of ∼8 nm. 15 In order to separate the stabilizing effect of the NPs on the droplets (i.e. Pickering emulsion), from the effect of the polymer, the growth of the droplets in the presence of the polymer was monitored by DLS (Fig.…”

“…13 Interestingly, this precipitation yields metastable and nearly monodisperse sub-μm droplets (typically 100-300 nm). [13][14][15] In the same way that conventional emulsions can be used as templates for the synthesis of colloidosomes, it has been shown that NPs adsorb at the surface of Ouzo emulsion droplets, and limit their coalescence. [14][15][16] Thus, Ouzo emulsions stabilized with nanoparticles share similarities with Pickering emulsions, in which particles act as surfactant.…”

“…[13][14][15] In the same way that conventional emulsions can be used as templates for the synthesis of colloidosomes, it has been shown that NPs adsorb at the surface of Ouzo emulsion droplets, and limit their coalescence. [14][15][16] Thus, Ouzo emulsions stabilized with nanoparticles share similarities with Pickering emulsions, in which particles act as surfactant. 11 However, in contrast with Ouzo emulsions stabilized with particles, Pickering emulsions yield micron-sized droplets or larger, and the formation and stabilization of subµm droplets have yet to be generalized.…”

Surface Properties of Colloidal Particles Affect Colloidal Self-Assembly in Evaporating Self-Lubricating Ternary Droplets

“… 24 , 25 Recently, it was shown that, in the Ouzo regime, the addition of nanoparticles results in oil droplets with a narrow size distribution. 26 Therefore, both hydrophobicity and the electrostatic interactions between the particles and oil can affect the strength of particle–oil interactions and hence the particle assembly.…”