Kinetic Evaluation of Spin Trapping Rate Constants of New CYPMPO-type Spin Traps for Superoxide and Other Free Radicals

2015 ◽  
Vol 229 (3) ◽  
Author(s):  
Yoshimi Sueishi ◽  
Erisa Kamogawa ◽  
Hideo Nakamura ◽  
Mitsuko Ukai ◽  
Michio Kunieda ◽  
...  
Keyword(s):  
Free Radicals ◽  
Rate Constants ◽  
Spin Trapping ◽  
Trapping Rate ◽  
Kinetic Evaluation ◽  
Spin Traps

AbstractCYPMPO (5-(2,2-dimethyl-1,3-propoxyl cyclophosphoryl)-5-methyl-1-pyrroline

Spin trapping for hydroxyl in water: a kinetic evaluation of two popular traps

1980 ◽  
Vol 58 (8) ◽  
pp. 803-807 ◽  
Author(s):  
Paul R. Marriott ◽  
M. John Perkins ◽  
David Griller
Keyword(s):  
Rate Constants ◽  
Half Life ◽  
Biological Systems ◽  
Spin Trapping ◽  
Order Process ◽  
Kinetic Evaluation ◽  
Spin Traps ◽  
First Order ◽  
Tert Butyl

Two spin traps, 4-(N-methylpyridinium)tert-butyl nitrone (4-MePyBN) and 5,5-dimethyl-1-pyrroline-1-oxide (DMPO) were examined for their effectiveness at trapping hydroxyl in water. At pH 6 and 22 °C, rate constants for trapping hydroxyl were found to be 0.5 × 109 M−1 s−1 (4-MePyBN) and 2.0 × 109 M−1  s−1 (DMPO). The hydroxyl adduct of DMPO decayed by a first order process with a half-life of 870 s. This was at least three times greater than that of the 4-MePyBN adduct. These and other results suggest that DMPO is the superior trap for this particular application and is well suited for use in biological systems.

Microwave Induced Free Radicals Production in Red Wine and Model Wine by EPR Spin Trapping

2021 ◽  
Author(s):  
Jiangfeng Yuan ◽  
Zhuoyao Chen ◽  
Dahong Wang ◽  
Minggui Gong ◽  
Zhijun Qiu
Keyword(s):  
Free Radicals ◽  
Red Wine ◽  
Spin Trapping ◽  
Epr Spin Trapping

scholarly journals Use of a cocktail of spin traps for fingerprinting large range of free radicals in biological systems

PLoS ONE ◽  
2017 ◽  
Vol 12 (3) ◽  
pp. e0172998 ◽  
Author(s):  
Valérie Marchand ◽  
Nicolas Charlier ◽  
Julien Verrax ◽  
Pedro Buc-Calderon ◽  
Philippe Levêque ◽  
...  
Keyword(s):  
Free Radicals ◽  
Large Range ◽  
Biological Systems ◽  
Spin Traps
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