Results 101 to 110 of about 4,999,106 (187)
Kinetic Footprinting of an RNA-Folding Pathway Using Peroxynitrous Acid
Angewandte Chemie International Edition, 2000 Following footprints to discover a path is easier with peroxynitrous acid. The folding of the Tetrahymena ribozyme was studied using this readily available reagent to generate hydroxyl radicals for kinetic footprinting studies. The different domains of the ribozyme appear to assemble at different rates following an ordered, hierarchical pathway (see ...
Steven G. Chaulk, Andrew M. MacMillan
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ChemInform Abstract: Formation and Decay of Peroxynitrous Acid: A Pulse Radiolysis Study.
ChemInform, 1993 AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
T. Loegager, Κ. Sehested
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Kinetics of decomposition of peroxynitrous acid
Journal of the Chemical Society A: Inorganic, Physical, Theoretical, 1969 The conversion of peroxynitrite into nitrate has been studied at 0° from pH 4 to 9. The kinetics are consistent with conversion's occurring through the peroxynitrous acid molecule, at a specific rate of 6 min.–1, and a pKa of 6·6.
W. G. Keith, R. E. Powell
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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
Lijun Wei +5 more
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Degradation of extracellular matrix by peroxynitrite/peroxynitrous acid
Free Radical Biology and Medicine, 2008 The 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 ...
Eleanor C. Kennett, Michael J. Davies
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Kinetics Evidence for a Complex between Peroxynitrous Acid and Titanium(IV)
ChemInform, 2004 AbstractFor Abstract see ChemInform Abstract in Full Text.
Patrick K. Wick +2 more
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The Yield of Hydroxyl Radical from the Decomposition of Peroxynitrous Acid
Inorganic Chemistry, 1999 Mechanistic predictions, based upon the assumption that free {sm{underscore}bullet}OH and {sm{underscore}bullet}NO{sub 2} radicals are formed as intermediates during the ONOOH decay, were tested using inorganic radical scavengers. Both the rates and the yields of Fe(CN){sub 6}{sup 4{minus}} and IRcl{sub 6}{sup 3{minus}} oxidation by ONOOH were ...
Oleg V. Gerasimov, Sergei V. Lymar
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, 2015 Peroxynitrous acid (ONOOH) produced by online mixing of nitrite and acidified hydrogen peroxide could induce weak chemiluminescence (CL). A stronger chemiluminescence was observed in the presence of gold nanoclusters (Au NCs).
Yanyan Sui +3 more
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Infrared overtone spectroscopy and unimolecular decay dynamics of peroxynitrous acid
The Journal of Chemical Physics, 2005 Peroxynitrous acid (HOONO) is generated in a pulsed supersonic expansion through recombination of photolytically generated OH and NO2 radicals. A rotationally resolved infrared action spectrum of HOONO is obtained in the OH overtone region at 6971.351(4)cm−1 (origin), providing definitive spectroscopic identification of the trans-perp (tp) conformer of
Ian M. Konen +5 more
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Theoretical Study on the Mechanisms of the Reaction of Peroxynitrous Acid and Phenol
Acta Physico-Chimica Sinica, 2006 Abstract 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 ...
Yandong Wang +4 more
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