Oil-in-water or multiple emulsion with high concentration of dissolved ultra-violet B filter used as light-protection skin care productOil-in-water (O/W) emulsions (preferably O/W microemulsions, O/W/O or O/W/O' emulsions) contain: (a) an aqueous phase; (b) optionally usual water-...
water-oil-water emulsionsmultiple emulsionsThe influence of some additives on the release characteristics of pentazocine from multiple W/O/ W emulsions was studied. The emulsions were prepared by a well established two-step emulsification technique. Additives were present in either the internal or the...
W/O/W multiple emulsions break down by several possible routes, for example by coalescence of the internal aqueous droplets or of the oil drops, by expulsion of the internal droplets following rupture of the oily lamella which surrounds them, or by passage of water through the oil phase by ...
The release of NaCl and 5-fluorouracil (5-FU) separately entrapped in the internal aqueous phase of w/o/w emulsions was measured. Diffusion of the un-ionized species of 5-FU across the oil phase or through localized thin oil lamellae is the primary transport mechanism. In the presence of ...
Modelling W/O/W double emulsions preparation in static mixers: Accounting for the shear-thinning behaviour of the dispersed phase preparation of double emulsions, comprising in a first step the preparation of a reverse water-in-oil (W/O) emulsion using a high-shear rotor-stator ... N Lebaz...
Surfactant-Phase Emulsification is a very useful method to produce oil-in-water emulsions having fine and uniform droplets. The mechanism of this emulsific... H Sagitani - 《Journal of Dispersion Science & Technology》 被引量: 34发表: 1988年 Development of multiple emulsions based on the repuls...
Controllable one-step double emulsion formation via phase inversion. Soft Matter 14, 1094–1099 (2018). CAS Google Scholar Min, J.-Y., Ahn, S.-I., Lee, Y.-K., Kwak, H.-S. & Chang, Y. H. Optimized conditions to produce water-in-oil-in-water nanoemulsion and spray-dried ...
Double emulsions (water-in-oil-in-water or oil-in-water-in-oil) are a typical class of multiple emulsions and have been widely investigated, presenting a multicompartment structure of “two films and three phases” (Garti and Bisperink, 1998, Seifriz, 1925). Components with different ...
Both theoretical and experimental approaches to the stability of W1/O/W2 multiple emulsions are developed. The theoretical approach emphasizes the role of Ostwald ripening in countering stability in W/O emulsions, and discusses the addition of an oil-insoluble solute to the inner water phase of the...
W1 -O-W2 emulsions are disclosed in which the W1 /O emulsion comprises an internal aqueous phase containing a benefit agent and an oil phase surrounding it, and, around this is found an external isotropic aqueous phase. It is critical that the external surfactant phase not comprise an amido ...