Section I.—Emulsions and emulsification

Phaco emulsification: trials and tribulations

Many of the retinal cell types in both vertebrate and invertebrate eyes have already been investigated using these techniques. As is well known, this has resulted in the positive identification of the physiologic response of vertebrate photoreceptors and certain other retinal neurons. These results are among the most important in recent visual physiology. As interest in intracellular staining i...

Phase Inversion Emulsification

Phase inversion refers to a phenomenon that occurs when agitated oil in water emulsion, reverts to a water in oil and vice versa. Emulsification via phase inversion is widely used in fabrication of cosmetic products, pharmaceutical products (e.g., vesicles for drug delivery), foodstuff and detergents. Emulsification process is strongly affected by preparation method; very different droplet size...

Dynamics of spontaneous emulsification

We present a model for spontaneous emulsification resulting from a transiently negative interfacial tension between water and oil regions, which may be achieved under conditions of strong adsorption of surfactant molecules to the interface. While our approach builds on a linear stability analysis, it addresses the essential non-linear coupling of surface growth to the diffusion flux of surfacta...

Extreme emulsification: formation and structure of nanoemulsions

Nanoemulsions are metastable dispersions of nanodroplets of one liquid that have been ruptured by shear in another immiscible liquid. The ruptured droplets are stabilized against subsequent coalescence by a surfactant. Because the nanodroplets do not form spontaneously, as they can in lyotropic “microemulsion” phases, the structure of nanoemulsions is primarily dependent on the history of the a...

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