pyrrolidone

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pyrrolidone

(pēr-rōl-i-dōn'),

Member of a family of chemicals related by structure; produces diverse activity on biologic systems.

Synonym(s): 2-oxopyrrolidine

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A combination of methyl methacrylate (MMA) and vinyl pyrrolidone (VP) was also used with a degree of success.

Understanding contact lens materials

4]), ethanol, acetic acid, and polyvinyl pyrrolidone purchased from Aldrich Chemical Co.

Fabrication and characterization of cerium substituted hydroxyapatite/Polyvinyl pyrrolidone coating on Ti-6al-4v alloy for orthopedic applications

Piracetam possesses a pyrrolidone skeleton, which is the cyclic derivative of the neurotransmitter [gamma]-aminobutyric acid (GABA) (Winblad, 2005).

Racemic oleracein E increases the survival rate and attenuates memory impairment in D-galactose/NaN[O.sub.2]-induced senescent mice

N-vinyl pyrrolidone (NVP) is a hydrophilic monomer, which compose of nitrogen atoms five-membered ring.

Surface Modification of Intraocular Lenses

John, S, Kuruvilla, M, Josep, A, "Surface Morphological and Impedance Spectroscopic Studies on the Interaction of Polyethylene Glycol (PEG) and Polyvinyl Pyrrolidone (PVP) with Mild Steel in Acid Solutions.

Comparison and characterization of biocompatible polymer coatings on AISI 316L stainless steel

Polyvinyl pyrrolidone was preferred for blending with PVAc to add polar group and an amphyphilic character for increase the solubilization of the dodecenol molecule, other pheromone component.

Nanofibras polimericas como vehiculos de eliminacion de feromona sexual sintetica de Grapholita molesta (Lepidoptera, Tortricidae)

Four hundred mg of various MW of PEG (MW: 1,000, 4,000, 6,000, 20,000), polyvinyl pyrrolidone (PVP, MW: 10,000) or insoluble polyvinyl polypyrrolidone (PVPP) were also added into the syringes.

Assessment of anti-nutritive activity of tannins in tea by-products based on in vitro rumen fermentation

697 [35] Company grafted with N-vinyl-2- pyrrolidone Saccharomyces Calcium alginate 89.

Current trends in bioethanol production by saccharomyces cerevisiae: substrate, inhibitor reduction, growth variables, coculture, and immobilization

25% weight in the nanocomposite coating; and a nanometer powder having 1%-10% weight in the nanocomposite coating; wherein the nanocomposite coating is formed by mixing the nanometer inorganic oxide gel, the organic solvent and the nanometer powder together; wherein the nanometer powder is processed by a surfactant before being mixed with the nanometer inorganic oxide gel and the organic solvent to form the nanocomposite coating; wherein the surfactant is any one of or a mixture of a sodium dodecylsulphonate and a polyvinyl pyrrolidone.

Cheng Uei Precision Industry patents nanocomposite coating

Lutrol F127, Poly vinyl pyrrolidone (Kollidon[R] K30) was purchased From BASF, Germany and Colloidal silicon dioxide (Aerosil 200, Degussa, Frankfurt, Germany); lactose was purchased from Meggle Pharma, Germany.

Design and development of solid self emulsifying osmotic delivery system of nifedipine

While a polymer binder such as polyvinyl difluoride is employed using the highly toxic solvent N-methyl pyrrolidone, Davidson foresees the use of water-based binders based on cellulose.

All grown up: still the bulwark of our hand-held electronic toys, lithium-ion batteries are getting big enough to take centre stage in renewable power grids

Levetiracetam is a pyrrolidone derivative chemically unrelated to existing antiepileptic active substances, CHMP said, adding that the mechanism of action of levetiracetam still remains to be fully elucidated but appears to be different from the mechanisms of current antiepileptic medicinal products.