What's the difference between bond and pyrogallol?

Bond


Definition:

  • (n.) That which binds, ties, fastens, or confines, or by which anything is fastened or bound, as a cord, chain, etc.; a band; a ligament; a shackle or a manacle.
  • (n.) The state of being bound; imprisonment; captivity, restraint.
  • (n.) A binding force or influence; a cause of union; a uniting tie; as, the bonds of fellowship.
  • (n.) Moral or political duty or obligation.
  • (n.) A writing under seal, by which a person binds himself, his heirs, executors, and administrators, to pay a certain sum on or before a future day appointed. This is a single bond. But usually a condition is added, that, if the obligor shall do a certain act, appear at a certain place, conform to certain rules, faithfully perform certain duties, or pay a certain sum of money, on or before a time specified, the obligation shall be void; otherwise it shall remain in full force. If the condition is not performed, the bond becomes forfeited, and the obligor and his heirs are liable to the payment of the whole sum.
  • (n.) An instrument (of the nature of the ordinary legal bond) made by a government or a corporation for purpose of borrowing money; as, a government, city, or railway bond.
  • (n.) The state of goods placed in a bonded warehouse till the duties are paid; as, merchandise in bond.
  • (n.) The union or tie of the several stones or bricks forming a wall. The bricks may be arranged for this purpose in several different ways, as in English or block bond (Fig. 1), where one course consists of bricks with their ends toward the face of the wall, called headers, and the next course of bricks with their lengths parallel to the face of the wall, called stretchers; Flemish bond (Fig.2), where each course consists of headers and stretchers alternately, so laid as always to break joints; Cross bond, which differs from the English by the change of the second stretcher line so that its joints come in the middle of the first, and the same position of stretchers comes back every fifth line; Combined cross and English bond, where the inner part of the wall is laid in the one method, the outer in the other.
  • (n.) A unit of chemical attraction; as, oxygen has two bonds of affinity. It is often represented in graphic formulae by a short line or dash. See Diagram of Benzene nucleus, and Valence.
  • (v. t.) To place under the conditions of a bond; to mortgage; to secure the payment of the duties on (goods or merchandise) by giving a bond.
  • (v. t.) To dispose in building, as the materials of a wall, so as to secure solidity.
  • (n.) A vassal or serf; a slave.
  • (a.) In a state of servitude or slavery; captive.

Example Sentences:

  • (1) The femoral component, made of Tivanium with titanium mesh attached to it by a new process called diffusion bonding, retains superalloy fatigue strength characteristics.
  • (2) An unsaturated fatty acid auxotroph of Escherichia coli was grown with a series of cis-octadecenoate isomers in which the location of the double bond varied from positions 3 to 17.
  • (3) At pH 7.0, reduction is complete after 6 to 10 h. These results together with an earlier study concerning the positions of the two most readily reduced bonds (Cornell J.S., and Pierce, J.G.
  • (4) It was found that there is a significant difference in bond strengths between enamel and stainless steel with strength to enamel the greater.
  • (5) Since the start of this week, markets have been more cautious, with bond yields in Spain reaching their highest levels in four months on Tuesday amid concern about the scale of the austerity measures being imposed by the government and fears that the country might need a bailout.
  • (6) Genotoxic carcinogens form covalent bonds with proteins as well as with DNA.
  • (7) Accordingly, when bFGF, complexed to heparin, is treated with pepsin A, an aspartic protease with a broad specificity, only the Leu9-Pro10 peptide bond is cleaved generating the 146-amino acid form.
  • (8) The bond distances of Cu to Cl(1), Cl(2), N(3) and N(3') atoms are 2.299 (1), 2.267 (1), 1.985 (4) and 1.996 (3) A, respectively.
  • (9) An unexpected result of the Greek crisis has been a flight of capital into British government bonds, which has seen gilt prices fall.
  • (10) We propose that, for a GC base pair in B conformation, there are two amino proton exchangeable states--a cytosine amino proton exchangeable state and a guanine amino proton exchangeable state; both require the disruption of only the corresponding interbase H bond.
  • (11) Furthermore, we demonstrate that reduction of the disulfide bonds of a pre-processed A-loop containing heterodimeric insulin peptide is required to further process insulin into a T cell epitope.
  • (12) Analysis of bond values of glass ionomer added to glass ionomer indicate bond variability and low cohesive bond strength of the material.
  • (13) All N and O atoms except N(3) and O(4') participate in a three-dimensional hydrogen-bonding system.
  • (14) The coatings formed contain only stable chemical bonds (e.g., C-C, C-O-C), and easily-derivatized hydroxyl moieties.
  • (15) S100b protein, chemically modified by thioethanol groups (linked via disulfide bonds to two out of four Cys per dimer) was largely similar to reduced native S100b protein in its overall structure and differed only by small modifications extending, however, to the whole protein structure.
  • (16) The relative cleavage frequency at the first glycosidic bond counting from the nonreducing end of the substrate increases with increasing substrate concentration.
  • (17) We found that the closer location of Mg2+ to the beta-phosphoryl group than to the alpha- or gamma-phosphoryl group was effective in weakening the P-O bond at which the cleavage of ATP catalyzed by most enzymes takes place.
  • (18) Brief digestion at neutral pH without reduction produced a molecule in which the Fab and Fc fragments were still linked by a pair of labile disulphide bridges, and the Fc fragment released by cleaving these bonds, called 1Fc fragment, contained a portion of the ;hinge' region including an interchain disulphide bridge.
  • (19) Both adiphenine.HCl and proadifen.HCl form more stable complexes, suggesting that hydrogen bonding to the carbonyl oxygen by the hydroxyl-group on the rim of the CD ring could be an important contributor to the complexation.
  • (20) However, peptide bonds between 193 and 194, and 194 and 195 were cleaved in the presence of mAb 1C3 as easily as in the presence of mAb 31A4, suggesting that the region of residues 200 to 202 was obscured by, or within the antibody binding site, but that the region of residues 193 to 195 was not.

Pyrogallol


Definition:

  • (n.) A phenol metameric with phloroglucin, obtained by the distillation of gallic acid as a poisonous white crystalline substance having acid properties, and hence called also pyrogallic acid. It is a strong reducer, and is used as a developer in photography and in the production of certain dyes.

Example Sentences:

  • (1) We adapted the pyrogallol red-molybdate method for total urinary protein to the Cobas Bio centrifugal analyzer.
  • (2) Although pyrogallol inhibited the effects of SNP, the action profile generally resembled the action profile for NANC responses more closely than did the profiles for S-nitroso-L-cysteine or NO.
  • (3) The hydrolytic products of lignins, humic acids and industrial waste including hydroquinone, catechol, resorcinol, pyrogallol and 1,2,4-benzenetriol are widely distributed in water sources.
  • (4) The SCN- normally present in human saliva will reduce observed reaction rates by simple competition kinetics in the ABTS, guaiacol and pyrogallol assays and will increase the rates observed when Cl- is used as a donor in NBS assay for MPO.
  • (5) Pyrogallol reduced the concentrations of SAM in a similar manner in both areas and increased SAH much more in the cortex than in the striatum; these effects corresponded to that on O-methylation in terms of dose-effect relationships, indicating that there is no compartmentation of SAM with respect to the methylation process in which it is used.
  • (6) EC SOD activity in rabbit and guinea-pig serum, measured by a modified pyrogallol assay, eluted just before ceruloplasmin activity, but rat and bovine serum activity eluted after ceruloplasmin (apparent mol.
  • (7) In vitro pretreatment of aortic rings with gossypol (10(-6)-10(-5) M), pyrogallol (10(-5) M), hemoglobin (10(-6) M), and NG-nitro-L-arginine (NOARG, 10(-4) M) inhibited endothelium-dependent relaxation induced by carbachol.
  • (8) The antioxidant efficiency of some polyhydric phenols was determined kinetically and found to be catechol greather than pyrogallol greater than hydroquinone greather than resorcinol greater than n-propyl gallate for the benzaldehyde photooxidation.
  • (9) In addition to small molecules such as pyrogallol, human serum proteins, albumin and gamma-globulin, are shown to be substrates of the oxidizing model.
  • (10) The stoichiometry of pyrogallol conversion to phloroglucinol was independent of the amount of tetrahydroxybenzene added.
  • (11) The pyrogallol red-molybdate(IV) method has sensitivity and specificity similar to that for other semiquantitative assays, but it is less expensive and sample throughput can be high if microtiter plate techniques are used.
  • (12) When the rats were pretreated with pyrogallol, free 3H-DOPEG accounted for nearly 50% of the radioactivity retained in the three areas of the central nervous system after in vivo labelling with 3H-NA.
  • (13) The micronucleus test using mouse bone-marrow polychromatic erythrocytes was used to study the extent to which benzo[a]pyrene (BP) mutagenicity was inhibited by mixtures of simple phenols (resorcinol and pyrogallol) with and without the complex hindered-phenol antioxidant dibunol (2,6-di-tert-butyl-4-methylphenol).
  • (14) The inhibitory activity of etozoline towards serotonin- and histamine-induced contractions was reduced by pyrogallol and by methylene blue, whereas it was potentiated by superoxide-dismutase.
  • (15) SOD activity was measured by pyrogallol assay in ethanol-chloroform extracts of the thyroid homogenates.
  • (16) The pyrogallol autoxidation assay for superoxide dismutase was adapted for analysis by centrifugal analyzer.
  • (17) However, unfractionated fluid samples caused interferences with the xanthine oxidase based SOD assays, though not with the pyrogallol method.
  • (18) The catechol or pyrogallol moiety did not exert preferential activity towards the oligomycin-sensitive ATPase because morin, which contains a meta-dihydroxy configuration, was the most potent ATPase inhibitor.
  • (19) In some metabolites of benzalkonium chloride, chlorhexidine digluconate or glutaraldehyde, only pyrogallol showed positive genotoxicity in the absence of S9 mixture and the activity was not affected by the metabolic activation system.
  • (20) A novel mechanism deduced from these data involves intermolecular transfer of the hydroxyl moiety from the cosubstrate (1,2,3,5-tetrahydroxybenzene) to the substrate (pyrogallol), thus forming the product (phloroglucinol) and regenerating the cosubstrate.

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