3 results match your criteria: "Kyiv Taras Shevchenko University[Affiliation]"
Size and Surface Chemistry Tuning of Silicon Carbide Nanoparticles.
Langmuir
November 2017
Nanotechnology Institute of Lyon (INL), UMR CNRS 5270, University of Lyon, 69361 Lyon, France.
Article Synopsis
- Researchers studied the chemical transformations of 3C-SiC nanoparticles using FTIR, XPS, and temperature-programmed desorption mass spectrometry methods.
- Thermal oxidation created a hydroxylated SiO surface layer and allowed for size adjustment of SiC nanoparticles from 17 nm to 9 nm via specific treatments.
- The modified SiC nanoparticles, with hydroxyl, carboxyl, and amino groups, can form stable aqueous solutions, making them suitable for further chemical functionalization.
Radiation losses in optical nanofibers with random rough surface.
Opt Express
April 2008
Radio Physics Faculty, Kyiv Taras Shevchenko University, 64, Volodymyrska Street, 01033 Kyiv, Ukraine.
Radiation losses of optical nanofibers are investigated in assumption of Gaussian statistics of distorted glass/air interface. Nonlinear relationship between the radiated power and roughness power spectrum is established. The losses in the single mode silica nanofibers are estimated for the case of inverse-square law of the roughness power spectrum.
View Article and Find Full Text PDF[Inhibition of lipoxygenase activity reduces radiation-induced DNA fragmentation in lymphocytes].
Radiats Biol Radioecol
July 1999
Kyiv Taras Shevchenko University, Department of Biochemistry.
Lypoxygenase activity of lymphocytes towards exogenous substrate linolic acid and the level of endogenous arachidonate metabolite 15-HETE are increased within 6 h and decreased below the control level at 24 h after 1 Gy X-ray irradiation of Wistar rats. DNA fragmentation is stimulated both in vivo within 12 h and during in vitro incubation of lymphocytes, obtained 3 h following irradiation. DNA analysis by agarose gel shows that DNA fragments are multiples of the 200 base pair unit.
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