Spectrochemistry of Plasma-Induced Free Radicals in Cellulose Derivatives.

Identification of Free Radicals Induced by Gamma Irradiation in Amino Acid Derivatives

Powders of N-acetyl-L-leucine and N-methyl-L-glutamic acid were gamma irradiated and the free radicals formed were investigated at room temperature by electron paramagnetic resonance technique. The free radicals formed in compounds were attributed to the (CH3)2ĊCH2CH(NHCOCH3)COOH and HOOCCH2CH2Ċ(NHCH3)COOH radicals respectively. Both radicals are very stable and we could observe them for five m...

2006 Winter Conference on Plasma Spectrochemistry

Free radicals of benzo(a)pyrene and derivatives.

The evidence for biological involvement, the spectroscopic properties (especially EPR), and the reactions, of free radicals derived from benzo(a)pyrene and its methylated, hydroxylated, and fluorinated derivatives are reviewed.

The Role of Free Radicals in Hemolytic Toxicity Induced by Atmospheric-Pressure Plasma Jet

Atmospheric-pressure plasma (APP) has received attention due to its generation of various kinds of reactive oxygen/nitrogen species (ROS/RNS). The controllability, as well as the complexity, is one of the strong points of APP in various applications. For biological applications of this novel method, the cytotoxicity should be estimated at various levels. Herein, we suggest red blood cell (RBC) ...

Role of oxygen and nitrogen free radicals in diabetes-induced atherosclerosis and effects of exercise on it

Free radical can be defined as a molecule or molecular fragments containing unpaired electron in the outer orbital, which react with nearby molecules to get stability. There are two types of them in the body: oxygen free radicals and nitrogen free radicals. Our body has an antioxidant defense system which prevents accumulation of these radicals. There is a balance between free radical produc...