scholarly journals Observation of linear-polarization-sensitivity in the microwave-radiation-induced magnetoresistance oscillations

2013 ◽  
Author(s):  
R. G. Mani ◽  
A. N. Ramanayaka ◽  
W. Wegscheider
Keyword(s):  
Microwave Radiation ◽  
Linear Polarization ◽  
Polarization Sensitivity ◽  
Radiation Induced ◽  
Magnetoresistance Oscillations

Carboxymethylated Glucan Inhibits Lipid Peroxidation in Liposomes

1999 ◽  
Vol 54 (12) ◽  
pp. 1084-1088 ◽  
Author(s):  
Melánia Babincová ◽  
Eva Machová ◽  
Grigorij Kogan
Keyword(s):  
Lipid Peroxidation ◽  
Microwave Radiation ◽  
Cell Damage ◽  
Oh Radicals ◽  
Moderate Amount ◽  
Liposome Membrane ◽  
Phosphatidylcholine Liposomes ◽  
Oxidation Index ◽  
Liposome Suspension ◽  
Radiation Induced

Protective capabilities were studied of carboxymethylated (1→3)-β-ᴅ-glucan from Saccharomyces cerevisiae cell wall against lipid peroxidation in phosphatidylcholine liposomes in duced by OH· radicals produced with Fenton’s reagent (H2O2/Fe2+) and also by microwave radiation using absorption UV-VIS spectrophotometry. A significant decrease in the conjugated diene production, quantified as Klein oxidation index, was observed in the presence of a moderate amount of added glucan. Increase of the oxidation index was accompanied with enhanced carboxyfluorescein leakage as a result of liposome membrane destabilization. This process was markedly suppressed with glucan present in the liposome suspension. Therefore, glucan may be considered as a potent protector against microwave radiation-induced cell damage.

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