2 documents found, page 1 of 1
Titanium dioxide catalytic activity contributes to the process of free radical ...
Canillas, M; Chinarro, E; Freitas, M; Pêgo, AP; Moreno, BTiO2 crystallochemical properties have been explored and correlated with the activity of this material in the scavenging of reactive oxygen and nitrogen species (ROS/RNS). It is well known that those highly reactive species are produced by inflammatory cells and neutralized by some oxides, such a titanium dioxide under light. Nevertheless, the mechanism of action of this ceramic material is yet to be fully unde...
Scavenging activity of Magnéli phases as a function of Ti(4+)/Ti(3+) ratios
Canillas, M; Chinarro, E; Pêgo, AP; Moreno, BTiO2 is able to scavenge reactive oxygen and nitrogen species (ROS and RNS) in the absence of light. The scavenging mechanism has been related to the chemistry of defects (oxygen vacancy reduced oxidation states of Ti) but it is still unknown. This study describes the ROS scavenging activity of different titanium oxide phases and relates their scavenging activities with the Ti4+/Ti3+ molar ratio as well as the ...