ChemInform Abstract: Sensitive Determination of Reactive Oxygen Species by Chemiluminescence Methods and Their Application to Biological Samples and Health Foods

ChemInform ◽  
2008 ◽  
Vol 39 (45) ◽  
Author(s):  
Mitsuhiro Wada
Keyword(s):  
Reactive Oxygen Species ◽  
Biological Samples ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Sensitive Determination

UV-Vis Spectrophotometrical and Analytical Methodology for the Determination of Singlet Oxygen in New Antibacterials Drugs

2007 ◽  
Vol 2 ◽  
pp. 117739010700200 ◽  
Author(s):  
Tamara Zoltan ◽  
Franklin Vargas ◽  
Carla Izzo
Keyword(s):  
Reactive Oxygen Species ◽  
Singlet Oxygen ◽  
Nalidixic Acid ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Inexpensive Method ◽  
Analytical Methodology ◽  
First Time

We have determined and quantified spectrophotometrically the capacity of producing reactive oxygen species (ROS) as 1O2 during the photolysis with UV-A light of 5 new synthesized naphthyl ester derivates of well-known quinolone antibacterials (nalidixic acid (1), cinoxacin (2), norfloxacin (3), ciprofloxacin (4) and enoxacin (5)). The ability of the naphthyl ester derivatives (6-10) to generate singlet oxygen were detecting and for the first time quantified by the histidine assay, a sensitive, fast and inexpensive method. The following tendency of generation of singlet oxygen was observed: compounds 7 >10 > 6 > 8 > 9 >> parent drugs 1-5.

scholarly journals Fluorophotometric Determination of Hydrogen Peroxide and Other Reactive Oxygen Species with Fluorescein Hydrazide (FH) and Its Crystal Structure

2008 ◽  
Vol 56 (7) ◽  
pp. 977-981 ◽  
Author(s):  
Ryosuke Nakahara ◽  
Tsuyoshi Fujimoto ◽  
Mitsunobu Doi ◽  
Kanako Morita ◽  
Takako Yamaguchi ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Reactive Oxygen Species ◽  
Hydrogen Peroxide ◽  
Reactive Oxygen ◽  
Oxygen Species
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