Photocatalytic effect of anodic titanium oxide nanotubes on various cell culture media

The Effect of Nitrogen‐Doped ATO Nanotubes on Radical Multiplication of Buffer Media by Visible Light Photocatalysis Rather UV

“…This attributes to the chemical compound titanium oxide-nitride (TiO 2−x N x ) formation to produce a midgap band with 2.47 eV, resulting in the demand of the appropriate small energy or intensity to excite the electron with a loner wavelength of 500 nm. The anatase phases of annealed ATO under UV-A radiation and N-doped ATO under both of UV-A and visible light have the ability to photocatalyze and activate the culture media to release free hydroxyl radicals or oxygen radicals effectively by breaking a deoxyribonucleic acid (DNA) supercoiled plasmid after light irradiation [11,12]. The increase in the redox potential after UV-A and visible light irradiation in the acrylamide medium in the presence of ATO and N-doped ATO could be explained by the electron-accepting capacity of acrylamide.…”

“…(CH 2 CHCONH 2 ), as shown in Scheme 1. Consequently, many free radicals are brought into intensive contact with the acrylamide molecules [6,11,12]. Previous studies have demonstrated that the photocytotoxicity of ATO depends on the concentration of the photocatalyst, the dose of irradiating light, the morphology of TiO 2 , and the incorporation of the photosensitizer into the target cells [13].…”