Photodynamic activity of hybrid nanostructure on the basis of polycationic fullerene derivative and xanthene dye eosine Y
| Autor: | A. B. Kornev, Alexander I. Kotelnikov, N. S. Goryachev, A. Yu. Rybkin, A. V. Barinov, Gernot Renger, Hans Joachim Eichler, D. A. Poletaeva, Pavel A. Troshin, Franz-Josef Schmitt |
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| Rok vydání: | 2012 |
| Předmět: |
Materials science
Fullerene General Engineering Condensed Matter Physics Photochemistry Fluorescence spectroscopy Electron transfer chemistry.chemical_compound chemistry Absorption band Excited state Physics::Atomic and Molecular Clusters General Materials Science Singlet state Phosphorescence Derivative (chemistry) |
| Zdroj: | Nanotechnologies in Russia. 7:409-414 |
| ISSN: | 1995-0799 1995-0780 |
| Popis: | It has been shown by the use of steady-state and time-resolved fluorimetry and kinetic phosphorescent spectroscopy that a polycationic fullerene derivative forms complexes with eosine Y in solution due to electrostatic interactions. It has been found that singlet excited states of eosine Y are effectively quenched due to either the excitation energy transfer or electron transfer from the dye to the fullerene core. This leads to a substantial increase in the photodynamic activity of the fullerene derivative and the dye in the structure of the complex when it is excited by light in the absorption band of the dye. |
| Databáze: | OpenAIRE |
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