coacervation


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coacervation

/co·ac·er·va·tion/ (ko-as″-er-va´shun) the separation of a mixture of two liquids, one or both of which are colloids, into two phases, one of which, the coacervate, contains the colloidal particles, the other being an aqueous solution, as when gum arabic is added to gelatin.
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Polyester microcapsules were prepared by coacervation technology using the phase separation method in alcohol/hydrocarbon solvents.
Aspirin loaded albumin nanoparticle were prepared by coacervation process followed by crosslinking with glutaraldehyde (Merodio et al.
Other water-soluble vitamins were microencapsulated with sodium alginate by an emulsion coacervation process prior to supplementation to the experimental diets.
A core material, such as ammonium carbonate, was ground to a suitable size distribution and encapsulated by a modified solvent evaporation or coacervation technique.
The process of coacervation has evolved as the most basic mechanism for controlling deposition of colloidal suspensions in shampoo products.
Crodafos HCE (oleth-5 phosphate (and) dioleyl phosphate) employs coacervation technology to ensure targeted delivery of the conditioning polymer to the hair, according to the company.
Maximum coacervate deposition occurs at precise ratios of cationic polymer:anionic surfactant but the optimum ratio for coacervation might not coincide with the best ratios for cleaning and foaming.
A plethora of methods have been used to encapsulate cosmetic actives, including coacervation, phase separation, solvent-evaporation, spray-drying, spray-congealing, pan coating and fluid bed coating.
Eurand uses a coacervation process to microencapsulate ketoprofen particles, thereby masking the bitter taste of the drug.
The product was developed using Eurand's Microcaps(R), a coacervation microencapsulation technique that coats drug substances with polymer.
This technology utilizes a coacervation microencapsulation technique which coats a drug substance with a polymer coating.