Photochemical Production of Reactive Oxygen Species by C60in the Aqueous Phase During UV Irradiation

2007 ◽  
Vol 41 (7) ◽  
pp. 2529-2535 ◽  
Author(s):  
Jaesang Lee ◽  
John D. Fortner ◽  
Joseph B. Hughes ◽  
Jae-Hong Kim
Keyword(s):  
Reactive Oxygen Species ◽  
Aqueous Phase ◽  
Uv Irradiation ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Photochemical Production

scholarly journals 8.2.1　Generation of Reactive Oxygen Species in Aqueous Phase by Carbon-Ion Beam

RADIOISOTOPES ◽  
2019 ◽  
Vol 68 (10) ◽  
pp. 681-691
Author(s):  
Ken-ichiro Matsumoto ◽  
Minako Nyui ◽  
Megumi Ueno ◽  
Yukihiro Ogawa ◽  
Ikuo Nakanishi
Keyword(s):  
Reactive Oxygen Species ◽  
Aqueous Phase ◽  
Ion Beam ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Carbon Ion ◽  
Carbon Ion Beam

Role of reactive oxygen species in the dechlorination of trichloroethene and 1.1.1-trichloroethane in aqueous phase in UV/TiO 2 systems

2015 ◽  
Vol 123 ◽  
pp. 367-375 ◽  
Author(s):  
Landry Biyoghe Bi Ndong ◽  
Xiaogang Gu ◽  
Shuguang Lu ◽  
Murielle Primaelle Ibondou ◽  
Zhaofu Qiu ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Aqueous Phase ◽  
Reactive Oxygen ◽  
Oxygen Species

scholarly journals Electrophilic Chemicals but not UV Irradiation or Reactive Oxygen Species Activate Nrf2 in Keratinocytes In Vitro and In Vivo

2007 ◽  
Vol 127 (3) ◽  
pp. 646-653 ◽  
Author(s):  
Moritz Durchdewald ◽  
Tobias A. Beyer ◽  
Delinda A. Johnson ◽  
Jeffrey A. Johnson ◽  
Sabine Werner ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Uv Irradiation ◽  
Reactive Oxygen ◽  
Oxygen Species

Generation of Reactive Oxygen Species from Hinokitiol under Near-UV Irradiation

2003 ◽  
Vol 67 (9) ◽  
pp. 1996-1998 ◽  
Author(s):  
Hitoshi SHIBATA ◽  
Takayuki NAGAMINE ◽  
Yong WANG ◽  
Takahiro ISHIKAWA ◽  
Yoshihiro SAWA
Keyword(s):  
Reactive Oxygen Species ◽  
Uv Irradiation ◽  
Reactive Oxygen ◽  
Oxygen Species

Evaluation of carotenoids and reactive oxygen species in human skin after UV irradiation: a critical comparison betweenin vivoandex vivoinvestigations

2015 ◽  
Vol 24 (3) ◽  
pp. 194-197 ◽  
Author(s):  
Martina C. Meinke ◽  
Robert Müller ◽  
Anne Bechtel ◽  
Stefan F. Haag ◽  
Maxim E. Darvin ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Human Skin ◽  
Uv Irradiation ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Critical Comparison

scholarly journals Surface modification of polyethylene microplastic particles during the aqueous-phase ozonation process

2020 ◽  
Vol 26 (5) ◽  
pp. 200412-0
Author(s):  
Rabia Zafar ◽  
Seon Yeong Park ◽  
Chang Gyun Kim
Keyword(s):  
Reactive Oxygen Species ◽  
Surface Modification ◽  
Reaction Time ◽  
Aqueous Phase ◽  
Natural Waters ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Ftir Analysis ◽  
Ozone Uptake ◽  
Ozonation Process

Microplastics coexist with the chemical reactive oxygen species in natural waters, however, there is still a lack to elucidate the effect of these radicals on the microplastic surficial oxidation. In this study, the ozonation of polyethylene microplastics was carried out under varying ozone dosages ranging from 4 to 7 mg/min for 60, 120 and 180 min, where its ozone uptake was iodometrically compared and surficial modification was spectroscopically analyzed using FTIR and XPS. For that, the lowest ozone uptake was 16% at 4 mg/min ozone supplied for 60 min whereas the highest was observed of 44% at 7 mg/min ozone added for 180 min. Moreover, in the FTIR analysis, carbonyl (1,600-1,800 cm<sup>-1</sup>) and hydroxyl (3,200-3,600 cm<sup>-1</sup>) indices were improved more than 20% and 13% when they were ozonized at 7 mg/min for 180 min compared to 4 mg/min for 60 min, respectively. XPS also revealed that 7 mg/min of ozone supplied for 180 min provided the highest of oxygen functionalities, but while there was no significant change in C-C bond. It can be concluded that the surficial modification of PE including formation of oxygen functionalities could be more preferably influenced by the reaction time than ozone dosages.

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