microsphere


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mi·cro·sphere

(mī'krō-sfēr),
Tiny globules of radiolabeled material such as macroaggregated albumin, about 15 mcm in size.

microsphere

A 10–4-µm-diameter bead made from PLGA (poly(lactic-co-glycolic acid)), a biodegradable and biocompatible compound used to entrap drugs (e.g., amoxicillin for listeriosis or Lupron Deport for prostate cancer) for timed therapeutic delivery over a period of days to months.

microsphere

small bodies of matter formed by the combinations of proteins that are produced in experiments attempting to simulate the creation of life on earth.
References in periodicals archive ?
Target: Boston Scientific/portfolio of drug-loadable microsphere and bland embolic bead products
This is because the prepared gel microsphere is a kind of polymer composite microsphere that has water absorption capability; thus, in the short soaking time, the water absorption ratio of the profile control agent increases gradually.
Caption: Figure 3: Drawing of aberrant microsphere deposition in the stomach (reproduced with permission of the publisher, Frontiers in Oncology [6]).
There are many polymerization methods for preparing PS microspheres, such as precipitation polymerization, seed polymerization, microemulsion, and dispersion polymerization.
To overcome the disadvantages of the polymeric microsphere, a novel core-shell microsphere is developed as the next-generation profile control agent [26-29], which has a core-shell double-layered structure.
The plugging effect of the DCA microsphere was evaluated using three layers of the heterogeneous artificial core.
The control group received vehicle (0.9% NaCl: 5% Cremophor; p.o.) and experimental groups received usnic acid (UA, 2000, 300, and 50 mg/kg; p.o.), poly-[epsilon]-caprolactone microsphere polymers containing usnic acid (UA-micro, 2000 mg/kg; p.o.), or indomethacin (10 mg/kg; p.o.).
Nouryon is the leading producer of expandable microspheres. The company recently announced that it would invest in a new world-scale Expancel plant in the US, subject to final board approval.
Key statement: Self-sealing tire sealants are provided which contain fragments and/or residues of expanded solids, where the solids are selected from the group containing expandable graphite and microspheres. In some aspects, the microspheres include at least isobutane and/or isopentane as blowing agents.
Poly(lactic-co-glycolic acid) (PLGA) microspheres (particle size < 10 [micro]m) were chosen as model particles due to their poor flow properties.