Determination of reactive oxygen species from ZnO micro-nano structures with shape-dependent photocatalytic activity

2014 ◽  
Vol 53 ◽  
pp. 246-250 ◽  
Author(s):  
Weiwei He ◽  
Hongxiao Zhao ◽  
Huimin Jia ◽  
Jun-Jie Yin ◽  
Zhi Zheng
Keyword(s):  
Reactive Oxygen Species ◽  
Photocatalytic Activity ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Nano Structures

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.

Particularities of photocatalysis and formation of reactive oxygen species on insulators and semiconductors: cases of SiO2, TiO2 and their composite SiO2–TiO2

2018 ◽  
Vol 8 (21) ◽  
pp. 5657-5668 ◽  
Author(s):  
Crina Anastasescu ◽  
Catalin Negrila ◽  
Daniel G. Angelescu ◽  
Irina Atkinson ◽  
Mihai Anastasescu ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Photocatalytic Activity ◽  
Reactive Oxygen ◽  
Oxygen Species

Highly defected tubular SiO2 outperforms the photocatalytic activity of TiO2-P25 and the SiO2–TiO2 composite.

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

scholarly journals Level of reactive oxygen species induced by p21WAF(1)/CIP(1)is critical for the determination of cell fate

2009 ◽  
Vol 100 (7) ◽  
pp. 1275-1283 ◽  
Author(s):  
Takafumi Inoue ◽  
Kiyoko Kato ◽  
Hidenori Kato ◽  
Kazuo Asanoma ◽  
Ayumi Kuboyama ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Cell Fate ◽  
Reactive Oxygen ◽  
Oxygen Species
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