Results 161 to 170 of about 148,924 (212)
Some of the next articles are maybe not open access.
Reactions of the Hydroxyl Radical with Polynucleotides
Radiation Research, 1973MICHAELS, H. B., AND HUNT, J. W. Reactions of the Hydroxyl Radical with Polynucleotides. Radiat. Res. 56, 57-70 (1973). Reactions of the hydroxyl radical with various monomeric components of nucleic acid, and with polynucleotides, were studied by observing the transient absorption of the -OH adduct species.
H B, Michaels, J W, Hunt
openaire +2 more sources
An optical hydroxyl radical sensor
Biosensors and Bioelectronics, 1993A hydroxyl radical (.OH) fibre-optic sensor has been developed. An .OH radical-sensitive reagent phase (nitrophenol) was immobilized onto XAD-7 methacrylate beads. Subsequently the beads were attached to the distal end of a polymethylmethacrylate fibre optic.
D P, Naughton +4 more
openaire +2 more sources
DNA footprinting with hydroxyl radical
Nature, 1988High resolution images of proteins bound to DNA can be achieved through the use of a simple inorganic chemical system that produces the hydroxyl radical.
openaire +2 more sources
Hydroxylation of 3-nitrotyrosine by hydroxyl radical
Chinese Chemical Letters, 2007Abstract Hydroxylation of 3-nitrotyrosine (3-NT) and 3-NT containing peptide Gly-nitroTyr-Gly in aqueous solution by hydroxyl radical were investigated with gamma irradiation. The structures of the hydroxylated products were confirmed by electrospray ionization mass spectrometry and 1 H NMR spectrometry.
Jun Chen Dong +3 more
openaire +1 more source
Isotopic Spectra of the Hydroxyl Radical
The Journal of Physical Chemistry A, 2013Rotational spectra of OH and its isotopologues have been precisely measured using high efficiency terahertz (THz) sources. The measurements are compared with existing data and are useful for global modeling. For the first time, microwave measurements of the Λ-doubling transitions of the (17)OH isotopologue are combined with THz data successfully ...
openaire +2 more sources
Analytical Biochemistry, 2001
Hydroxylation of l-phenylalanine (Phe) by hydroxyl radical (*OH) yields 4-, 3-, and 2-hydroxyl-Phe (para-, meta-, and ortho-tyrosine, respectively). Phe derivative measurements have been employed to detect *OH formation in cells and tissues, however, the specificity of this assay is limited since Phe derivatives also arise from intracellular Phe ...
BIONDI, Roberto +5 more
openaire +2 more sources
Hydroxylation of l-phenylalanine (Phe) by hydroxyl radical (*OH) yields 4-, 3-, and 2-hydroxyl-Phe (para-, meta-, and ortho-tyrosine, respectively). Phe derivative measurements have been employed to detect *OH formation in cells and tissues, however, the specificity of this assay is limited since Phe derivatives also arise from intracellular Phe ...
BIONDI, Roberto +5 more
openaire +2 more sources
Photogeneration of hydroxyl radicals for footprinting
Analytical Biochemistry, 1992Hydroxyl radicals yield footprints of DNA-ligand interactions that are uniform in intensity and display single base pair resolution. It is shown here that brief illumination of dilute aqueous solutions of hydrogen peroxide with a standard uv transilluminator can be used to generate hydroxyl radicals for footprinting studies.
openaire +2 more sources
Thiol-induced hydroxyl radical formation and scavenger effect of thiocarbamides on hydroxyl radicals
Journal of Inorganic Biochemistry, 1986The effects of thiols and thiocarbamides on hydroxyl radical (.OH) formation by the hypoxanthine(HYP)-xanthine oxidase(XOD)-Fe3+ .EDTA system were investigated in the range of 0.5-5 mM by colorimetrically measuring salicylate hydroxylation. Thiocarbamides powerfully inhibited the hydroxylation while thiols showed a paradoxical effect, enhancing it at ...
N, Motohashi, I, Mori
openaire +2 more sources
Effective Inhibition of Hydroxyl Radicals by Hydroxylated Biphenyl Compounds
Free Radical Research Communications, 1993In aqueous media, approximate rate constants for the reactions between hydroxyl radicals (.OH) and biphenyl compounds such as dehydrodieugenol, magnolol, honokiol, dehydrodidihydroeugenol, dehydrodivanillyl alcohol, and dehydrodicreosol were estimated by competition reactions for .OH between these biphenyls and 5,5-dimethyl-1-pyrroline-N-oxide (DMPO ...
J, Taira +5 more
openaire +2 more sources
Glycol Splitting by Hydroxyl Radicals
Nature, 1946RECENTLY1 I suggested, on theoretical grounds, that the splitting of I±-glycols to aldehydes or ketones by means of lead tetra-acetate was due to dehydrogenation by free acetate radicals.
openaire +2 more sources