In the present article we analyze the influence of various factors, both thermodynamic and hydrodynamic, on the stability of emulsion systems. The effect of the droplet size on the droplet life-time in an emulsion cream is quantified. The comparative importance of kinetic factors such as surface and bulk diffusion fluxes, or viscous and elastic surface stresses, is investigated. The fact that t...

The evolution of double-emulsion droplets is of great importance for the application of microdroplets and microparticles. We study the driving force of the dewetting process, the equilibrium configuration and the dewetting time of double-emulsion droplets. Through energy analysis, we find that the equilibrium configuration of a partial engulfed droplet depends on a dimensionless interfacial ten...

In high-resolution radioautography, a common source of difficulty in the use of the loop method for applying Ilford L-4 emulsion (1) is an inhomogeneous distribution of water in the emulsion . This inhomogeneity may be due to bad environmental conditions during transportation. It is easily cured by melting the entire bottle of emulsion once before use. Our standard procedure for the preparation...

Double emulsions are a promising formulation for encapsulation and targeted release in pharmaceutics, cosmetics food. An inner water phase is dispersed an oil phase, which again emulsified second phase. The encapsulated can be released via diffusion or coalescence, neither of desired during storage but might intended application. two interfaces double emulsion stabilized by hydrophilic lipophil...

Double layer encapsulation of Lactobacillus acidophilus by Emulsion and spray-drying Techniques: Study characteristics survival microcapsules under simulated gastrointestinal conditions

This double-blind, randomized, placebo-controlled trial evaluated the effectiveness of fennel seed oil emulsion in infantile colic. The results showed that the colic of 65% of the infants in the treatment group was eliminated compared with 23.7% in the control group; this difference was considered statistically significant. The study indicates that fennel seed oil emulsion is superior to placeb...

Curcumin and catechin are naturally occurring phytochemicals with extreme sensitivity to oxidation and low bioavailability. We fabricated a water-in-oil-in-water (W/O/W) double emulsion encapsulating hydrophilic catechin and hydrophobic curcumin simultaneously. The co-loaded emulsion was fabricated using a two-step emulsification method, and its physicochemical properties were characterised. Vo...

We develop an approach to fabricate monodisperse water-in-water-in-water (w/w/w) double emulsion in microfluidic devices. A jet of aqueous solution containing two incompatible solutes, dextran and polyethylene glycol (PEG), is periodically perturbed into water-in-water (w/w) droplets. By extracting water out of the w/w droplet, the solute concentrations in the droplet phase increase; when the c...