a box-behnken design with three replicates was used for preparation and evaluation of eudragit vancomycin (vcm) nanoparticles prepared by double emulsion. the purpose of this work was to optimize vcm nanoparticles to improve the physicochemical properties. nanoparticles were formed by using w1/o/w2 double-emulsion solvent evaporation method using eudragit rs as a retardant material. full factor...

A two-parameter equation to reproduce the droplet size distribution (DSD) of emulsions has been developed. The equation has been applied atisfactorily to oil-in-water (O/W) emulsions with triolein and tributyrin as oil phase and gum arabic, an alkylpolyglucoside and a fatty ethoxilated lcohol as emulsifier agents. Emulsions with aging effect also have been studied. The equation reproduces satis...

Sensory properties are fundamental in determining the success of a cosmetic product. In this work, we assessed the influence of different oils and emulsifiers on the physicochemical and sensory properties of anti-ageing cosmetic O/W emulsions containing vitamin E acetate as active ingredient. No clear correlation between physicochemical properties and sensory characteristics was evidenced. Sens...

Background: The dispersed phase volume fraction plays key role in oil-in-water emulsion stability by different mechanisms like partial flocculation, depletion flocculation and bridging flocculation. Since the mentioned mechanism is affected by emulsifier concentration presented in system, the major aim of this study was to investigate the effect of dispersed phase volume fraction on physical st...

The study was undertaken to contribute the sustainable management of Spodoptera frugiperda Smith on maize. It aims evaluate insecticidal efficacy Jatropha curcas L. oil S. larvae. Two concentrations J. (10 and 20ml.l-1) were tested by ingestion six larval stages grouped into (L1-2 (3-5 days age); L3-4 (6-8 L5-6 (>10 age)). determined in laboratory phytosanitary protection tests maize carried...

The aim. To study the biocomplex of surfactants based on rhamnolipids Pseudomonas sp. PS-17 (biocomplex PS) as an emulsifier and co-emulsifier by using method modelling composition emulsions for use in dermatology.
 Materials methods. PS is a biogenic surface-active complex synthesized bacteria genus Pseudomonas, which viscous mass that includes rhamnolipids, make up to 80 % biocomplex, we...