Results 91 to 100 of about 1,721 (149)
Probing mitochondrial peroxynitrite biogenesis by a N-morpholinoarylimine-based iridium(III) complex in drug-induced liver cells. [PDF]
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Degradation of extracellular matrix by peroxynitrite/peroxynitrous acid
Free Radical Biology and Medicine, 2008The extracellular matrix (ECM) provides strength and elasticity to tissues and plays a key role in regulating cell behavior; damage to this material is believed to be a major factor in many inflammatory diseases. Peroxynitrite/peroxynitrous acid, which is generated at elevated levels at sites of inflammation, is believed to play a role in ECM damage ...
Michael Davies
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Diversity of chemiluminescence from fluoroquinolones in the presence of peroxynitrous acid
Journal of Photochemistry and Photobiology A: Chemistry, 2016Abstract In this article, eight fluoroquinolone analogs showed intriguing chemiluminescence (CL) diversity in the presence of peroxynitrous acid. Compared to current literature, these studied fluoroquinolones exhibit many novel characteristics on CL spectra, CL quantum yield and reaction routes. Furthermore, when the distribution of CL was comparable
Xianglei Cheng
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Theoretical Study on the Mechanisms of the Reaction of Peroxynitrous Acid and Phenol
Acta Physico-chimica Sinica, 2006Abstract The mechanisms of the reactions of the radicals (·OH and ·NO2) derived from peroxynitrous acid with phenol have been studied using density functional theory (DFT) at the B3LYP/6-311++G(d, p)//B3LYP/6-311G(d, p) level. The geometries of all the molecules were optimized, and the harmonic vibration frequencies and the energies were calculated ...
Rugang Zhong +2 more
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Peroxynitric acid inhibits amyloid β aggregation
Biochemical and Biophysical Research Communications, 2023Peroxynitric acid (PNA), a reactive oxygen nitrogen species, has attracted attention in life science because of its unique properties such as high bacteriacidal activity. Since the bactericidal activity of PNA could be related to its reaction with amino acid residues, we speculate that PNA can be used for protein modifications.
Haruka Kawabe +3 more
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Protonation study of peroxynitric acid and peroxynitrous acid
The Journal of Chemical Physics, 2004The equilibrium structures and harmonic vibrational frequencies of peroxynitric acid (HOONO2) and seven structures of protonated peroxynitric acid, along with peroxynitrous acid (HOONO) and its 12 protonated peroxynitrous acid structures, have been investigated using several ab initio and density functional methods. The ab initio methods include second-
Randy L, Santiano, Joseph S, Francisco
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Peroxynitrous Acid ‐ Where is the Hydroxyl Radical?
IUBMB Life, 2003AbstractPeroxynitrite is an inorganic toxin of physiological interest, formed from the diffusion‐controlled reaction of superoxide and nitrogen monoxide with a rate constant of (1.6 ± 0.3) × 1010 M ‐ 1 s ‐ 1. On the basis of three experiments we conclude that homolysis of the O‐O bond in peroxynitrous acid is unlikely: (1) the yield of nitrite from the
Kissner R, Nauser T, Kurz C, Koppenol WH
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Rapid scavenging of peroxynitrous acid by monohydroascorbate
Free Radical Biology and Medicine, 2003The reaction of peroxynitrous acid with monohydroascorbate, over the concentration range of 250 microM to 50 mM of monohydroascorbate at pH 5.8 and at 25 degrees C, was reinvestigated and the rate constant of the reaction found to be much higher than reported earlier (Bartlett, D.; Church, D. F.; Bounds, P. L.; Koppenol, W. H. The kinetics of oxidation
Kurz CR +4 more
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Internal rotation in peroxynitrous acid (ONOOH)
The Journal of Chemical Physics, 2005Using higher levels of wave-function-based electronic structure theory than previously applied, as well as density functional theory (B-LYP and B3-LYP functionals), all theoretical models conclude that three ONOOH conformers are stationary point minima, in disagreement with some of the previous studies that we survey.
Mark P, McGrath, F Sherwood, Rowland
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