Deactivation of singlet oxygen by cerium oxide nanoparticles
| Autor: | T. O. Shekunova, Aslan Yu. Tsivadze, A. B. Shcherbakov, Yulia G. Gorbunova, Ivan N. Meshkov, Vladimir Ivanov, L. A. Lapkina |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
chemistry.chemical_classification
Reactive oxygen species Cerium oxide Singlet oxygen General Chemical Engineering General Physics and Astronomy chemistry.chemical_element Nanoparticle 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences Photobleaching 0104 chemical sciences chemistry.chemical_compound chemistry Hydroxide Photosensitizer Gallium 0210 nano-technology |
| Zdroj: | Journal of Photochemistry and Photobiology A: Chemistry. 382:111925 |
| ISSN: | 1010-6030 |
| DOI: | 10.1016/j.jphotochem.2019.111925 |
| Popis: | The influence of cerium oxide nanoparticles on singlet oxygen generation upon photosensitizer irradiation was studied. Solutions of tetra-15-crown-5-phthalocyanines (aluminium(III), gallium(III) and indium(III) hydroxide, 1Al, 1Ga, 1In) in DMSO were used as photosensitizers. Ceria nanoparticles (CNPs) were shown to inhibit the photobleaching process of the crown-phthalocyanines induced by UV and visible irradiation of these photosensitizers. The photoprotective properties of CNPs were shown to depend on their size and lattice parameter, with these in turn being determined by conditions of CNPs’ synthesis. In addition, the deactivation of the reactive oxygen species and the UV-shielding effect of ceria nanoparticles were demonstrated. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect