microcapsule

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microcapsule

(mī′krō-kăp′səl, -so͞ol)
n.
A small, sometimes microscopic capsule designed to release its contents when broken by pressure, dissolved, or melted.

microcapsule

Immunology
Magnetic microcapsule, see there.
 
Microbiology
An antigenic virtual layer surrounding some bacteria.
 
Therapeutics
A biohybrid device in which cells of interest (e.g., pancreatic islet cells) are encapsulated in alginate poly-l-lysine or for xenografts, simple alginate, to be delivered to a target tissue.

Microcapsules circumvent host immunity and are promising of the biohybrid “organs”, as they are easily implanted (requiring simple injection by a “standard issue” syringe), biocompatible, and achieve excellent glucose control.
References in periodicals archive ?
where N is the number of viable cells (log CFU [g.sup.-1]) released from the microcapsules and [N.sub.0] is the number of viable cells (log CFU [g.sup.-1]) in the cell concentrate prior to microencapsulation.
However, low-dose CXCL12 microcapsules either failed or were rejected by day 100 after transplantation, on average, while human SC-beta cells in high-dose CXCL12 microcapsules survived and continued fully functioning up to 154 days post-transplantation, when the experiment was terminated.
Scanning electron microscope (SEM, JSM-6701F) was used to observe the morphology of the microcapsules and the wear surface of the composites.
So, scientists at the University of Illinois set out to develop a microfluidic technique for fabricating hollow microcapsules with tunable release rates, using the food-grade protein zein.
"This approach requires the formation and functionalisation of double emulsion microcapsules, which we have been producing with the help of microfluidics.
Pequi pulp oil microcapsules were prepared by the complex coacervation method in aqueous medium according to procedure described by Alvim et al.
The microcapsules were stored in a temperature-controlled chamber under different light and temperature conditions, following Rutz et al.
Microcapsules containing BMP-2 and VEGF were prepared using the improved double emulsion/solvent evaporation technique as previously described (17).
Development of Alginate Microcapsules by Emulsion Cross-Linking Technique.
Microcapsules displayed a consistent appearance of a sphere with diameter of 500~600 [micro]m.
Bacterial cells are immobilized in hydrogels using different methods and equipment, that is, the electrostatic and vibrating technique, which enables us to obtain, in a one-step procedure, uniform, spherical microcapsules or microbeads with a diameter of 0.15-2.0 mm (vibrating technique) or 0.2-3.0 mm (electrostatic technique), with a small size distribution [16-19].
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.