coacervate


Also found in: Dictionary, Encyclopedia, Wikipedia.
Related to coacervate: coacervate theory

co·ac·er·vate

(kō-as'er-vāt),
An aggregate of colloidal particles separated out of an emulsion (coacervation) by the addition of some third component (coacervating agent).
[L. coacervare, pp. -atus, to collect in a mass]

coacervate

(kō-ăs′ĕr-vāt) [L. coacervatus, heaped up]
The formation of an aggregate in a solution that is about to emulsify or in an emulsion that is demulsifying.
Mentioned in ?
References in periodicals archive ?
Evidence and characterization of complex coacervates containing plant proteins: application to the microencapsulation of oil droplets.
"Although coacervates exist on a microscopic level, the function of assimilating surrounding matter extends into our world as well as the universe beyond.
The animals were divided as follows: control diet plus tap water (C-W); control diet plus coacervate (C-CWP); high fat diet plus coacervate (HF-CWP); and high fat diet plus tap water (HF-W).
Thus, the refractive index strongly depends on the amount of dye present in the coacervate phase.
Lochhead, University of Southern Mississippi, reported on the correlation of the physicochemical behavior of coacervates normalized with critical overlap concentration of a polymer.
Similar results were obtained with coacervation of chitosan with gumkaraya [48], and it was concluded that this effect may be due to an increase in the number of drug particles, which reduced the amount of coacervated phase within the microspheres and might have interfered with cohesion of coacervate. In spite of the reported effect of drug loading (more than 40%) on the release rate of drug from chitosan-albumin microspheres [37], in our work the drug to polymer ratio was set at 0.5 or 0.25 (Table 2), but still at these high loading its effect on drug release efficiency was negligible (Figure 7).
Silicone oil was added to the flask via a syringe pump inserted in the third neck at a constant flow rate of 2.5 m1/min, until the final weight fractions of PLGA, methylene chloride, and silicone oil approached 0.013, 0.614, and 0.373, respectively, to achieve stable coacervate formation.
COMPLEX COACERVATE FORMATION WITHIN A CONCENTRATED REGIME
INVESTIGATING THE EFFECT OF SODIUM CHLORIDE CONCENTRATION ON COMPLEX COACERVATE FORMATION WITHIN A CONCENTRATED REGIME
As the pH was altered and crosslinking occurred a dense coacervate shell encapsulated the core material.
It is comprised of a cationic polymer comprising cationic protonated amine or quaternary' ammonium functionalities comprising dialkylaminoalkyl acrylates, dialkylaminoalkyl methacrylates, monoalkylaminoalkyl acrylates, monoalkylamino alkyl methacrylates, trialkyl methacryloxyalkyl ammonium sails, trialkyl acryloxyalkyl ammonium salts, diallyl quaternary ammonium salts, pyridinium moeities, imidazolium moeities, quaternized pyrrolidone moeities, and mixture thereof; an encapsulated anionic colorant selected from the group consisting of FD&C Yellow 5, D&CYellow 10, D&C Red 33, D&C Green 5, D&CYellow 8, D&C Red 28, and mixtures thereof; and an aqueous carrier; wherein the cationic polymer forms a coacervate with the encapsulated anionic colorant.