coacervate


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Related to coacervate: coacervate theory

coacervate

[kō′as·ər‚vāt]
(chemistry)
An aggregate of colloidal droplets bound together by the force of electrostatic attraction.
References in periodicals archive ?
Phase separation of PLGA, and encapsulation of the coacervate around ammonium carbonate particles was successful, proving the compatibility of interfacial energies and surface properties of the polymer droplets and hydrophilic core material in accordance with Arshady (1990) [21].
This preferential solubility behavior allows the preparation of nanocapsules by heating homogenized dispersions of mixtures of shea butter, water and polycaprolactone oligomers to 80[degrees]C then cooling to 20[degrees]C to allow coacervate to form at the oil-water interfaces.
The novel coacervates are effective for extracting and enriching a variety of chemicals from biological and environmental samples.
Deposition from anionic surfactant systems is frequently achieved by the formation of complex coacervates of cationic polymers and anionic surfactants.
In the first half of the 20th century, Alexander Oparin established the "Metabolism First" hypothesis to explain the origin of life, thus strengthening the primary role of cells as small drops of coacervates, which are evolutionary precursors of the first prokaryote cells.
Shell-core systems such as coacervates or gelatin beads are costly and generally limited to lipophilic flavours.
Various kinds of organic microsystems have been considered as possible prebiotic models (matrixes): RNA-World macromolecules (Gilbert, Joice), micelles and vesicles (Deamer, Luisi), proteinoide microspheres (Fox, Dose), coacervates (Oparin), marigranules (Ventilla, Egami), etc.
Langmuir I (1938) The role of attractive and repulsive forces in the formation of tactoids, thixotropic gels, protein crystals and coacervates.
He said that this synthetic glue is based on complex coacervates, an ideal but so far unused method for making injectable adhesives.
POLYELECTROLYTE COACERVATES FROM CATIONIC AND ANIONIC POLYMERS
Photo chemical formation of self-sustaining coacervates.