What's the difference between butyl and polymerization?

Butyl


Definition:

  • (n.) A compound radical, regarded as butane, less one atom of hydrogen.

Example Sentences:

  • (1) The favourable properties of one of these agents - n-butyl 2-cyanoacrylate are presented by authors.
  • (2) tert-Butyl hydroaminoxyl is detected as a degradation product of the hydroxyl adduct from all spin traps.
  • (3) A red pigment produced by the actinomycete strain B 4358 was identified as butyl-meta-cycloheptylprodiginine (4) by 1H, 13C and correlation via long range coupling NMR spectra.
  • (4) These effects of t-butyl hydroperoxide on [9,10-3H]oleic acid incorporation are not affected by dissipating transmembrane gradients for calcium and potassium.
  • (5) Alphaxalone and endogenous steroid hormone metabolites inhibit the binding of [35S]-t-butyl bicyclophosphorothionate in some regions, enhance it in others and give biphasic concentration-dependence in others, apparently the result of algebraic summation of two effects involving regional-dependent enhancement or inhibition.
  • (6) The effect of subchronic feeding of 2,2'-oxamidobis[ethyl 3(3,5-di-tert-butyl-4-hydroxyphenyl) propionate], Naugard XL-1 (CAS number 70331-94-1), was studied in beagle dogs.
  • (7) Quantitative studies show that the amount of compound solubilized is proportional to the LPC concentration and that solubilization increases in the order ethyl, n-propyl and n-butyl ester.
  • (8) Treatment animals had the anastomoses and graft sealed with a suspension of N-butyl-2-cyanoacrylate and 1.2 g tobramycin powder (antibiotic glue, ANGL) after contamination.
  • (9) The most considerable realization of the hydrophobic interaction with the surroundings of the enzyme esteratic site was marked for n-butyl derivative (compound I).
  • (10) In addition, the effects of glutathione depletion by various biochemical means and of exogenous glutathione supplementation on the response of tubule segments to tert-butyl hydroperoxide exposure are described.
  • (11) A marked decrease in the coefficient of oleandomycin distribution in the system of the fermentation broth filtrate-butyl acetate was observed during the transfer from the 1st to the following extraction stages.
  • (12) Electron spin resonance (ESR) spin trapping methodology has been used to study the reactions of manganese dusts with glutathione, employing alpha-(4-pyridyl-1-oxide)-N-tert-butyl-nitrone (PBN) and 5,5-dimethyl-1-pyrroline-N-oxide (DMPO) as spin traps.
  • (13) SKF 38393 (1 microM)-stimulated adenylate cyclase activity was strongly reduced (by almost 60%) by the highly selective mu-agonist [D-Ala2, MePhe4, Gly-ol5]-enkephalin (DAGO; EC50 = 0.006 microM) and high concentrations of the selective delta-agonist [D-Ser2(O-tert-butyl), Leu5]-enkephalyl-Thr6 (DSTBU-LET; EC50 = 0.13 microM) but not by the selective delta-agonist [D-penicillamine2, D-penicillamine5]enkephalin (DPDPE).
  • (14) N-ethyl, N-n-propyl, N-n-butyl, N,N-di-n-propyl and N-n-propyl-N-n-butyl derivatives of 2-amino-6,7-dihydroxy-1,2,3,4-tetrahydronaphthalene (ADTN) were screened for dopamine vascular agonist activity.
  • (15) Synthesis of 3-O-phytanyl-sn-glycero-1-phosphoryl-1'-sn-glycerol (monophytanyl ether analogue of lysophosphatidyl glycerol) was carried out by conversion of the above phosphotriester to the monosilver salt of the suitably blocked lysophosphatidic acid which was condensed with 1-iodo-2-O-t-butyl-3-O-benzyl-sn-glycerol.
  • (16) Photohemolysis was decreased by reduced glutathione (GSH) and reduced even more by butylated hydroxyanisole (BHA); sodium azide, superoxide dismutase and mannitol did not show a significant effect.
  • (17) Simple and rapid determination method for butylated hydroxyanisole [2(3)-tert-butyl-4-hydroxyanisole)] (BHA) (CAS no.
  • (18) Thereafter, they were divided into 6 groups and were maintained on diet containing either 2% butylated hydroxyanisole (BHA), 1% BHA, 1% butylated hydroxytoluene (BHT), 1% ethoxyquin (EQ) or 1% DL-alpha-tocopherol (alpha-TP) for 32 weeks.
  • (19) Mutagenicity of Salmonella TA98 and covalent binding to DNA of 3,3'-dichlorobenzidine (DCB) were used to assess the influence of di-tert.-butylated hydroxytoluene (BHT) on the in vitro activation of the arylamine by rat hepatic S9 metabolic systems.
  • (20) A 50% decrease was found in the ability of carcinogen-altered bronchi to act as a substrate for lipid peroxidation mediated by Adriamycin and an approximately 30% decrease for lipid peroxidation induced by t-butyl-hydroperoxide.

Polymerization


Definition:

  • (n.) The act or process of changing to a polymeric form; the condition resulting from such change.

Example Sentences:

  • (1) Natural tubulin polymerization leads to the formation of hooks on microtubular structures.
  • (2) The polymerization of dATP, dCTP, and dGTP onto the defined length initiator, d(pA)10, has been carried out in four buffers.
  • (3) The results indicated that the higher-M(r) somatostatin-like species isolated from the hypothalamus did not result from hormone polymerization by means of disulfide interchange.
  • (4) Essential characteristics of the composite bone cement included a homogeneous and uniform fiber distribution, and a minimal increase in apparent viscosity of the polymerizing cement.
  • (5) On the other hand, ultraviolet (320-nm) light, absorbed by 3-hydroxy-pyridinium cross-links which were rapidly photolyzed, partially dissociated polymeric collagen aggregates from bovine Achilles tendon after subsequent heating.
  • (6) The reaction was treated with T5 D15 exonuclease to selectively destroy partially polymerized single-stranded phage DNA that may otherwise contribute to an increased background of wild-type transformants.
  • (7) Since chromatin particles containing DNA the size of 125 kbp can electroelute, we conclude that the polymerizing complex is attached to a nucleoskeleton which is too large to escape.
  • (8) The UV and IR absorption spectra of compounds present in the eluate were compared with those of model compounds that were assumed to exist in the gel as impurities after the polymerization (monomers and oligomers of hydroxyethyl methacrylate, decomposition products of initiators).
  • (9) Oligo- or polyribonucleotides are relatively ineffective initiators of polydeoxynucleotide polymerization.
  • (10) Ultrastructural studies of detergent-insoluble cytoskeletons from infected cells and immunofluorescence microscopy of phalloidin-labeled cells showed alterations in the structure of the cytoskeleton during the internalization process including the accumulation of polymerized actin around entering bacteria.
  • (11) On day 5, intake of the elemental group exceeded that of the polymeric group (p less than 0.02).
  • (12) Poly (2'-deoxy-2'-fluoroinosinic acid) [ poly(If)] was synthesized by polymerization of 2'-deoxy-2'-fluoroinosine 5'-diphosphate catalyzed by Escherichia coli polynucleotide phosphorylase.
  • (13) A cytokine-mediated up-regulation of SC that simultaneously increases the transport capacity for polymeric IgA would constitute an efficient enhancement of secretory immunity in diseased glandular tissue.
  • (14) This has been demonstrated from agglutination and radioimmunometric assay (RIMA) results, using ten antisera raised in rabbits against purified polymeric flagellins from ten Salmonella serotypes as immunogens.
  • (15) This reaction gave rise to artifacts in alkaline polyacrylamide gels and isoelectric focusing systems when residual acrylamide monomers were still present in the gel matrix after the polymerization process ceased.
  • (16) Greater than 99% of the polymerization reaction products were quenched by the addition of 2.0 mM ascorbate.
  • (17) Thus, patients treated with extracts polymerized with glutaraldehyde had IgG4 levels that were similar to those of the patients subjected to no IT.
  • (18) Examination of the inhibitory effect of ATP using oligo(dA)12-18 as well as activated DNA as primers revealed that (a) ATP inhibition is not due to its addition onto a 3'-OH primer terminus ad judged by the lack of incorporation of labeled ATP, although under similar conditions incorporation of GTP can be demonstrated, (b) a consistent degree of inhibition was noted independent of primer or enzyme concentration; (c) addition of ATP to an ongoing reaction promptly reduces the rate of polymerization; (d) kinetic studies indicate a competitive (with respect to substrate deoxy triphosphate) pattern of inhibition; (e) addition of excess deoxyribotriphosphate promptly relieves the inhibition.
  • (19) With different oxidation catalysts most antioxidants and amino acids tested enhanced polymerization.
  • (20) This implies that degradation of sIgM does not result from the incompetence of 38C cells to polymerize.

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