Resonance energy transfer in the systems of smectite modified with a fluorescent cationic polymer and a photosensitizer

摘要: Abstract The hybrid materials studied in this work consisted of synthetic saponite (Sap) particles, dextran polymer with positively charged alkylammonium and fluorescein luminophore groups (FITC), photosensitizer - phloxine B (PhB). Solid films these were prepared by vacuum filtration from colloidal precursors. film composition has been designed such a way that the amount fluorescently active components was constant only ratio between chromophores Sap changed. Based on this, it possible to evaluate optical properties as result interactions equilibria taking place components. In addition basic characterization materials, emphasis evaluating spectral their systems significantly affected anionic forms both FITC PhB. Such changes also reflected photoactivity fluorescence samples. aim prepare exhibit efficient absorption visible light excitation energy transfer PhB molecules. potential importance type is briefly discussed.