• Peroxynitrous acid (HNO3) is a reactive nitrogen species (RNS). (wikipedia.org)
  • The rate coefficient for this reaction is poorly defined due to practical limitations and the presence of a secondary pathway which forms peroxynitrous acid (HOONO). (chemistryviews.org)
  • Peroxynitrous acid (ONOOH) a potent oxidizing and nitrating agent, is formed in vivo from superoxide and nitric oxide radicals by stimulated macrophages and other cells. (ku.dk)
  • Modification of Tyr was quantitatively more significant than Trp (9.1% versus 1.5% conversion with 500μM ONOOH) after accounting for parent amino acid abundance, but only accounts for a small percentage of the total oxidant added. (ku.dk)
  • 2). It is an isomer of nitric acid and isomerises with a rate constant of k = 1.2 s−1, a process whereby up to 5% of hydroxyl and nitrogen dioxide radicals may be formed. (wikipedia.org)
  • The rate of formation of pollutants including ozone, nitric acid, and fine particulate nitrate is influenced by the reaction of hydroxyl radical with nitrogen dioxide to form nitric acid (HONO 2 ). (chemistryviews.org)
  • Alpha radiolysis of nitric acid aqueous solution by a ,238,Pu source is investigated experimentally and theoretically. (sinap.ac.cn)
  • The time dependence of the nitrous acid yield on dose rate, nitric acid concentration, and nitrate ion concentration is studied. (sinap.ac.cn)
  • The results provide a better understanding of the α-ray radiolysis of aqueous nitric acid. (sinap.ac.cn)
  • Radiolysis of nitric acid solutions : LET effects, Trans. (sinap.ac.cn)
  • N.E. Bibler, Curium-244 α radiolysis of nitric acid: Oxygen production from direct radiolysis of nitrate ions, J. Phys. (sinap.ac.cn)
  • J.C. Sheppard, Alpha radiolysis of plutonium(IV)-nitric acid solutions, USAEC Report No. BNWL-751, 1968. (sinap.ac.cn)
  • iron chelating, nitric oxide radical (NO), peroxynitrite (ONOO − ), singlet oxygen ( 1 O 2 ), hypochlorous acid (HOCl), lipid peroxidation (LPO) and FRAP showed a concentration-dependent antioxidant activity with no significant difference with the controls. (biomedcentral.com)
  • The simulation results agree well with the experimental data, indicating the validity of our model to treat the reaction paths for generation and consumption of nitrous acid. (sinap.ac.cn)
  • Inhibition via dietary curcumin of purchase sulfamethoxazole online no prescription rx azoxymethane-promptd ornithine decarboxylase, tyrosine protein kinase, arachidonic acid metabolism and aberrant mausolitaryum foci duringmation in the rat colon. (upb.ro)
  • b) peracid oxidation, and (c) a nucleophilic attack of peroxynitrous acid over aldehyde to form an intermediate, X, that produces benzoic acid, or, through a Cannizzaro-type reaction, benzoic acid and benzyl alcohol. (uvigo.es)
  • The respiratory burst is a major source of superoxide, hydrogen peroxide, the hydroxyl radical, hypochlorous acid (HOCl), and RNOS. (ecoshelta.com)
  • A total of 31 compounds, which mainly include organic acids, were tentatively identified based on the comparison of their mass spectrum profiles with those recorded in a mass spectra database. (referencecitationanalysis.com)
  • This graph shows the total number of publications written about "Peroxynitrous Acid" by people in this website by year, and whether "Peroxynitrous Acid" was a major or minor topic of these publications. (ouhsc.edu)
  • The calculated energy for separating peroxynitrous acid into hydroxide ion and nitronium ion is 13 kcal - mall' at pH 7.0. (docksci.com)
  • Both SIN-1-induced injury and 3-nitrotyrosine staining were prevented by the addition of either 5,10,15,20-Tetrakis (4-sulfonatophenyl) prophyrinato iron (III) [FeTPPS], an OONO(-) decomposition catalyst, or uric acid, an OONO(-) scavenger. (nih.gov)
  • An increase in the relative superoxide levels is important in the generation of oxidative stress, since superoxide radical can give rise to the strong oxidant singlet oxygen (reaction [Rx] 1 in Figure 1), or it can react with nitric oxide to give rise to the peroxynitrous acid (Rx 2), which can give rise to the strong oxidants nitric dioxide radical and hydroxyl radical (Rx 3). (medscape.com)
  • NO is produced from the amino acid L-arginine by the enzymatic action of nitric oxide synthase (NOS). (kseldercare.com)
  • Comparison with results for the nitrous, nitric and peroxynitric acid and their anions supports these estimates. (irb.hr)
  • Amylin free acid (AFA) was also examined to investigate the role of the C-terminal amide in amylin. (bvsalud.org)