Electron Spin Resonance Analysis of Radiation-Induced Free Radicals in Shells and Membranes of Different Poultry Eggs

2012 ◽  
Vol 6 (1) ◽  
pp. 265-269 ◽  
Author(s):  
Ijaz A. Bhatti ◽  
Kashif Akram ◽  
Jae-Jun Ahn ◽  
Joong-Ho Kwon
1961 ◽  
Vol 15 ◽  
pp. 791-802 ◽  
Author(s):  
Svein Prydz ◽  
Thormod Henriksen ◽  
B.-A. Lamberg ◽  
Gert E. Olsen ◽  
Christian Pedersen ◽  
...  

2018 ◽  
Vol 1144 ◽  
pp. 012173
Author(s):  
P Rintarak ◽  
B Pattanasiri ◽  
S Anupong ◽  
S Ninlaphruk ◽  
S Dangtip

2004 ◽  
Vol 851 ◽  
Author(s):  
Mircea Chipara ◽  
Wendland Beezhold ◽  
Timothy Webb ◽  
Jeffrey M. Zaleski ◽  
Kristina Stephenson ◽  
...  

ABSTRACTElectron spin resonance investigations on the effect of electron bombardment of nanocomposites obtained by dispersing carbon nanotubes within styrene-isoprene-styrene are reported. The experimental results revealed the absence of radiation-induced free radicals and a negligible effect of electron beam irradiation on the electron spin resonance spectra of carbon nanotubes.


2011 ◽  
Vol 2011 ◽  
pp. 1-11
Author(s):  
Shinobu Ito ◽  
Tomohisa Mori ◽  
Hideko Kanazawa ◽  
Toshiko Sawaguchi

Electron spin resonance (ESR) method is a simple method for detecting various free radicals simultaneously and directly. However, ESR spin trap method is unsuited to analyze weak ESR signals in organs because of water-induced dielectric loss (WIDL). To minimize WIDL occurring in biotissues and to improve detection sensitivity to free radicals in tissues, ESR cuvette was modified and used with 5,5-dimethtyl-1-pyrroline N-oxide (DMPO). The tissue samples were mouse brain, hart, lung, liver, kidney, pancreas, muscle, skin, and whole blood, where various ESR spin adduct signals including DMPO-ascorbyl radical (AsA∗), DMPO-superoxide anion radical (OOH), and DMPO-hydrogen radical (H) signal were detected. Postmortem changes in DMPO-AsA∗and DMPO-OOH were observed in various tissues of mouse. The signal peak of spin adduct was monitored until the 205th day postmortem. DMPO-AsA∗in liver (y=113.8–40.7 log (day),R1=-0.779,R2=0.6,P<.001) was found to linearly decrease with the logarithm of postmortem duration days. Therefore, DMPO-AsA∗signal may be suitable for detecting an oxidation stress tracer from tissue in comparison with other spin adduct signal on ESR spin trap method.


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