Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Janusz, Bednarek"'
Publikováno v:
Free Radical Research. 38:659-664
Oxidative stress plays an important role in hyperthyroidism-induced tissue damage, as well as in development of autoimmune disorders. To clarify influence of thyroid metabolic status and autoimmune factors on blood extracellular indices of reactive o
Publikováno v:
Physical Chemistry Chemical Physics. 2:1587-1593
The effects of γ-irradiating three metastable forms of water at 77 K have been studied by electron spin resonance spectroscopy and are compared with those of hexagonal ice. Two amorphous forms of water were made by so-called hyperquenching of liquid
Publikováno v:
Radiation Physics and Chemistry. 55:477-481
Radicals generated by high-energy irradiation of liquid water, short-lived at ambient temperature, can be studied at cryogenic temperatures after irradiating water and dilute aqueous solutions in their glassy states which can be obtained by so-called
Publikováno v:
The Journal of Physical Chemistry B. 103:6824-6828
Publikováno v:
Radiation Physics and Chemistry. 53:635-638
Hyperquenching of liquid water with cooling rates of 10 6 –10 7 K s −1 yields glassy water. Upon γ -irradiation at 77 K, the only paramagnetic species accumulating in hyperquenched glassy water are the hydroxyl and hydroperoxyl radicals. There a
Publikováno v:
The Journal of Physical Chemistry A. 102:9091-9094
The effects of γ-irradiation at 77 K on two crystalline forms of water, namely, cubic and hexagonal ice, and on two amorphous forms of water, made by hyperquenching of liquid water or deposition of water vapors, have been studied by electron spin re
Publikováno v:
The Journal of Chemical Physics. 104:5279-5283
The decay kinetics of propagating radicals in UV‐irradiated poly(methyl methacrylate) (PMMA) was followed at the irradiation temperatures in the range 300–400 K. At the highest temperatures, in the glass transition region of PMMA the radical deca
Publikováno v:
The Journal of Physical Chemistry. 100:3910-3916
X-irradiation of tetramethylammonium hydroxide pentahydrate (TMNOH) at 77 K produces trapped electrons, and CH3• and (CH3)3N+CH2• radicals. The trapped electrons were detected by bleaching with visible light and by subtraction of spectra from ble
Publikováno v:
Journal of the American Chemical Society. 118:9387-9390
ESR spectroscopy has been used to identify the paramagnetic species trapped at 77 K upon γ-irradiation of glassy water prepared by hyperquenching of liquid water at cooling rates exceeding 105 K/s. Besides OH radicals, which are the only paramagneti
Publikováno v:
Chemical Physics Letters. 232:581-586
Nitrosyl haemoglobin in aqueous solutions was used for low-temperature electron spin resonance studies on the kinetics of photoinduced NO ligand dissociation from the haem group. It was found that fractal time kinetic equations provide an adequate de