polyamine


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pol·y·am·ine

(pol'ē-am'ēn), Although this word is correctly stressed on the second-last syllable, U.S. usage often stresses it on the last syllable.
Class name for substances of the general formula H2N(CH2)nNH2, H2N(CH2)nNH(CH2)nNH2, H2N(CH2)nNH(CH2)nNH(CH2)nNH2, where n = 3, 4, or 5. Many polyamines arise by bacterial action on protein; many are normally occurring body constituents of wide distribution or are essential growth factors for microorganisms.
[G. polys, much, many + amine]

polyamine

(pŏl′ē-ə-mēn′, -ăm′ēn)
n.
Any of a group of organic compounds, such as spermine and spermidine, composed of only carbon, nitrogen, and hydrogen and containing two or more amino groups.

pol·y·am·ine

(pol'ē-am'ēn) Although this word is correctly stressed on the second-last syllable, U.S. usage often stresses it on the last syllable.
Many arise from bacterial action on protein; others are normally occurring body constituents of wide distribution or are essential growth factors for microorganisms.
[G. polys, much, many + amine]
References in periodicals archive ?
Classification Features Polyamine Aliphatic polyamine: the reaction is fast and type heat generation is remarkable.
Agmatine, a polyamine, is a widely-used workout supplement especially among body builders.
He added, "Our Linesoft WSC-40 is a new ternary block silicone for cotton, which is a three-component block copolymer of polysiloxane, polyamines and polyether."
Lei and Wang developed explosive-detection polymers that include a polyamine polymer functionalized with a small fluorophore.
Hacker et al., "Spermine oxidase SMO(PAOh1), not N1-acetylpolyamine oxidase PAO, is the primary source of Cytotoxic [H.sub.2][O.sub.2] in polyamine analogue-treated human breast cancer cell lines," Journal of Biological Chemistry, vol.
The aim of this study was to determine the functional role of SSAT and polyamine catabolism in apigenin-treated colon cancer cells and to elucidate whether apigenin-induced polyamine catabolism, caused by an increase in SSAT activity, induced apoptosis via an increase in ROS production.
This may also explain an increase in the ornithine and polyamine production through the arginase activity.
In AEH technology, the thermoplastic acrylic portion provides a quick surface drying, while hard drying is provided by the acrylic and the reaction of epoxy and polyamine curing agents.
For these reasons, in this study we investigated in more depth the cationic polymerization of EA-OH by using several initiators ([BF.sub.3][middot][Et.sub.2]O, [BF.sub.3][middot][EtNH.sub.2], La[(OTf).sub.3] Methyl triflale, etc.) and reaction conditions in order to obtain a polyamine with a structure as linear as possible and a molecular weight suitable for possible future applications in fields such as membrane technology.
Increase in endogenous polyamine level has been reported when the plant is exposed to salinity stress.
8,597,621 B2; L'Oreal has patented an emulsion lipstick composition, in solid form, comprising water; a water-insoluble half acid and half amide crosslinked reaction product of at least one oil-soluble high carbon polar modified polymer comprising at least one C22-C40 monomer and modified with at least one hydrophilic unit, and having a weight-average molecular weight of less than or equal to 30000 g/mol and a crystallinity of 8-60% and at least one polyamine, wherein the reaction product forms a matrix capable of entrapping water; at least one non-volatile solvent capable of solubilizing the oil-soluble high carbon polar modified polymer; and at least on high melting point wax.