microcapsule


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microcapsule

[′mī·krō‚kap·səl]
(chemical engineering)
A capsule with a plastic or waxlike coating having a diameter anywhere from well below 1 micrometer to over 2000 micrometers.
References in periodicals archive ?
The effects of different surfactant concentrations on microcapsule formation were studied.
The microencapsulated cells would be efficiently protected by the outer layer of the microcapsule and could undergo interaction with TMEs in the process of growth and activity.
Thus, in this work, a cellulose acetate biopolymer was used for the development of microcapsules containing Cyanex 923, a solvating reagent which has proven to be a good phenol extractant in studies on liquid-liquid extraction [21], supported liquid membranes [22, 23], and solvent impregnated resins [24], among others.
The researchers say that for the polymer and microcapsule tests, those that were bound to a peptide were loaded about 5 and 20 times more efficiently, respectively, onto hair than those that lacked a peptide.
The heat storage capacity increases with the amount of microcapsules and the incorporation of paraffin well increases the total heat stored by the mixture.
Microcapsule also plays an important role in the escape of bacterium from phagolysozyme system.
With these goals in mind, several microcapsule and micro-particle formulas have been developed to incorporate corrosion indicators and inhibitors into corrosion-protective coatings.
Microencapsulation is a process whereby droplets of a material can be encased by a second shell material to produce a microcapsule. The encapsulated media is referred to as the 'core' and the casing is termed the 'shell'.
SEM images of worn surfaces and counterpart surface for PBT binary and ternary composites: (a) worn surface of pure PBT; (b) worn surface of PBT binary composites with 15% microcapsule; (c) worn surface of PBT binary composites with 25% microcapsule; (d) worn surface of PBT ternary composites with 15% PTWs andl5% microcapsule; (e) counterpart surface of pure PBT; (f) counterpart surface of PBT binary composites with 15% microcapsule; (g) counterpart surface of PBT binary composites with 25% microcapsule; (h) counterpart surface of PBT ternary composites with 15% PTWs and 15% microcapsule.
The encapsulation efficiency was calculated from the amount of oil present in one gram of microcapsule (dry basis) in relation to the amount of oil initially inserted in the microencapsulation process by Equation 3 (BUENO et al., 2011).
At 36 days (Figure 1B), the extract (E) at 25 [degrees]C presented the highest color variation, and CapMG microcapsule at 4 and 25 [degrees]C had the least.
It has been reported that the degree of microcapsule expression is dependent on the composition of the growth medium, the stage of growth, and whether the organisms are cultured on solid or liquid medium (6,7).